Microsoft windows 7, vista, xp and 2000 tips & tricks.

There is almost not a Microsoft Windows 7, Vista or XP tip, trick or registry hack that is not described elsewhere on the web.
But occasionally we run across something that we haven't seen somewhere else. We have collected those tips, tricks and registry hacks on this page. Most of these tips will work on all Windows NT based (Windows 7, Vista, XP and 2000) 32 bit unless otherwise stated. They will probably for the most part also work on 64 bit systems but some of the registry addresses may be different.

Important. Read this first.

The Tips and Tricks on this page assumes that you have an understanding of your Microsoft Windows system.
DAG-KONSULT AB give no warranty, -implied or otherwise, or assumes any responsibility for the accuracy of these tips or as to their suitability on your system. Read more on our Legal page.

********** WARNING **********
Some tips on this page require tampering with Windows Registry. Using Registry Editor incorrectly can cause serious, system-wide problems that may require you to reinstall Windows to correct them. There is no guarantee that any problems resulting from the use of Registry Editor can be solved. Use this tool at your own risk.
*****************************
INDEX.
Windows All Versions.
Add or Remove Programs. Uninstalled programs still show up in the list.
Automatically diagnose and fix common problems with Windows Update.
Change Drive Name and Icon.
Disable Balloon Tips in Windows XP, Visa and 7.
Increased security for NetBios over TCP/IP.
Internet Explorer Fitted-Width Printing.
Internet Explorer - Increase the number of concurrent downloads.
Internet Explorer 6 and higher - Turning Off the Image Toolbar.
Internet Explorer 8 - InPrivate Filtering always on.
Windows 7.
Backing up Windows 7 Home Premium to a network.
Installing Windows 7 on a Compaq 730EO (HP Mini). Bluetooth doesn't work.
Increase toolbar icon size in Internet Explorer 9.
Windows Vista.
000005B3: ERROR_REQUIRES_INTERACTIVE_WINDOWSTATION.
You cannot access your old and trusty NAS nor any of its files from your brand new Vista machine.
Windows XP and 2000.
Add an additional Time Server for syncronizing time in Windows XP.
Balloon Tips can not be permanently disabled.
CD Burn rights in Windows 2000 and Windows XP.
Compatibility-Mode in Windows 2000 Service Pack 2.
Device Manager - Show Hidden Devices.
Disable the Passport pop-up in Windows XP.
Disable Automatic Document Shortcuts in My Network Places.
Enable Routing in Windows 2000 Professional.
Increased security. Clear virtual memory pagefile on system shut down.
Increased security. Disable POSIX.
Increased security. Prevent creating Dump file and DrWatson32.log file.
Increased security. Turn of Windows XP, IExplorer and Office XP Bug Report.
IP - Alternate Configuration in Windows XP.
IrDA - Installing VirtualInfrared COM Port under Windows 2000 and Windows XP.
Irftp - A convenient way to transfer files between Infrared capable Units.
Outlook Express, how to prevent long delay when opening after removing Windows Messenger.
Remove "Standby" option from shutdown menu.
Screen Saver Password Protection Policy.
Solid Edge V12 Tooltips flyouts misbehave under Windows XP.
Tweak Context Menus.
Windows 2000 hangs due to AMD AGP paging issue.
Windows 2000 and XP. How to disable Windows 2000 SP3's/Windows XP's auto updating.
Windows 2000/XP Disk Cleanup utility hangs.
Windows XP cannot delete files.
Windows XP cannot find helpctr.exe file.
Windows XP doesn't start and you can't access the System Restore Console.
Windows XP doesn't Remember Folder Settings Anymore.
Windows XP Home, Safe Mode is missing.
Windows XP Improved Search Function.
Windows XP Remote Desktop Connection connection error.
Windows XP slow shutdown and EventID 1517.
Windows XP SP2 EventID 4226. Service Pack 2 limits the number of simultaneous incomplete outbound TCP connection attempts.
Windows XP's Task Manager default setting doesn't show PIDs.
Windows Older (NT4).
Briefcase Icon.
Function"Open with" in Explorer.
Function "Open with" always available.
Windows Desktop Update.
Windows Media Player (WMP) prevent from processing HTML scripts contained within media files.
Windows Media Player, prevent Web checks for updates.
Microsoft Office.
Opening an Office application messes up the clipboard.
Pasting into Outlook 2007 produces blue question mark
Outlook blocked access to the following potentially unsafe attachments: [...]
How do to add the Outlook 2003 Icon to the desktop.
Outlook; you can't remove "Attach as Adobe PDF" from the New Mail toolbar.
   
  000005B3: ERROR_REQUIRES_INTERACTIVE_WINDOWSTATION.  
 

When you try to install a printer in your windows Vista system you receive the following error message:
000005B3: ERROR_REQUIRES_INTERACTIVE_WINDOWSTATION.
This may happen if you have bought a machine with Vista preinstalled and on which you, when finalizing the installation, are presented with multiple language choices and your chosen language doesn't mach your keyboard choice. E.g. you chose English language for the OS and e.g. a Swedish keyboard during the initial install process.
There is a workaround however. During the first important initial installation you chose the OS language and matching keyboard layout, in this example English OS and English keyboard. In another example you would chose Swedish language OS and the matching Swedish keyboard.

Then, after finalizing the installation; in this example add the Swedish keyboard, making it the default. To do so launch Regional and Language Options from Control Panel, click the Keyboards and Languages tab, and click Change Keyboard.

Windows Vista.

  Add an additional Time Server for syncronizing time in Windows XP.  
 

With Windows XP you can let the system synchronize the PC clock with a Time Server on the Internet. The problem is that it's not always reachable. You can easily add more time servers. Find the key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\DateTime\Servers\. In the right pane you find the two default Time Servers. To add one or more of your own, add a new String Value. Set a name that follows the other two in chronological order. The two that are already there have 1 and 2 so your new server address should be 3 then 4 etc. Double click on the new value and fill in the Web address for the new server.

One server which is always reachable is the Time Server at Lund's Tech University, Sweden. It has the Web address ntp.lth.se

  Add or Remove Programs. Uninstalled programs still show up in the list.  
 

When you uninstall programs it still show up under Add or Remove Programs. To clean up your Add or Remove Programs list start the Registry Editor (go to Start, Run and type Regedt32). Find the key HKEY_LOCAL_MACHINE\SYSTEM\SOFTWARE\Microsoft\ Windows\CurrentVersion\Uninstall. Find the programs' subkeys ad remove them.
Restart your system for this change to take effect.

  Automatically diagnose and fix common problems with Windows Update.  
 

Microsoft has an excellent article (kb906602) which describes how to troubleshoot common Windows Update, Microsoft Update, and Windows Server Update Services installation issues. There is also a very good FixIt tool which automatically diagnoses and fixes common problems with Windows Update.

Read more at http://support.microsoft.com/kb/906602.

Works with all current versions of Windows.

  Backing up Windows 7 Home Premium to a network.  
 

If you want to backup your Windows 7 installation there is an excellent tool, Backup and restore under Control Panel > System and Security. The only shortcoming is that unless you have the Business or Ultimate version of Windows 7 backup to a network is gone. It was there in Windows Vista but is gone in
Windows 7.
However, you can backup your Windows Home Premium to a network following this workaround.

  1. Disk Management > Create VHD (Virtual Hard Drive) on the NETWORK.
  2. Attach/Mount VHD (automatic upon creation) > Initial & Assign local drive letter.
  3. Backup to VHD saved on the network.

Works with Windows Seven.

  Balloon Tips can not be permanently disabled.  
 

Even though you disabled Balloon Tips according to the instructions below you still receive annoying Balloon Tips. If you open the Registry Editor and navigate to the value EnableBalloonTips you will notice that the value has been reset to 1. Hence, you now get Balloon Tips and resetting the value to 0 will have no effect, on your next logon the value will be 1 again.
This seems to be a particularly common problem with Netbooks.

The probable culprit here is the WIDCOMM Bluetooth tray service. The obvious solution is to set the value to 0 and remove the Bluetooth startup shortcut from the Startup folder but that is a solution with some drawbacks. Should you require the service for some reason starting the service will immediately set the value to 1 and you have to open the Registry Editor and manually reset the value to 0 again.

A much better solution is to permanently block the WIDCOMM Bluetooth tray service from accessing the registry value. To do so click on the DWORD value and then go to Edit and Permissions. This will open the Permissions for Advanced window and you will see a list of users, click on Advanced which will open Advanced Security Settings for Advanced. In the Permissions tab click on the first user and go to Edit. This will open Permission Entry for Advanced. Check the Deny box for Set Value but leave everything else unchecked. Repeat this for every user, even System. Close the Registry Editor and reboot your computer and the Balloon Tips should be gone.

Works with Windows XP, Vista and Seven.

  Briefcase Icon.  
 

Admit that the default Briefcase Icon on your desktop looks dull. There is a way to replace it with a new and shiny metal Attaché case.
Start the Registry Editor (go to Start, Run and type Regedt32). Find the key HKEY_CLASSES_ROOT\CLSID\{85BBD0920-42A0-1069-A2E4-08002B30309D}\DefaultIcon. Double click on the value in the right pane. It should end with Syncui.dll,0. Change it to Syncui.dll,1.
Restart your system for this change to take effect.

Works with Windows 95/98, NT and Windows 2000.

  CD Burn rights.  
 

As long as you are logged in as the system Administrator CD premastering software like Nero will work flawless. But when you are logged in as an ordinary user you will get a massage like this:
"Under Windows NT4/2000 burn rights are required by Nero to access cd recorders and cd-rom/dvd-rom drives. Please ask your system administrator for a permission to use Nero."
You get this message because Windows 2000 and Windows XP do not grant access to low level drivers for users without administrative rights
To solve this.

  1. Go to Start, Settings and then Control Panel.
  2. Click on Administrative Tools and then Local Security Policy.
  3. Navigate to Security Settings, Local Policies, Security Options and then to Restrict CD-ROM access to locally logged-on user only.
    (Under Windows XP you should navigate to Device: Restrict CD-ROM access to locally logged-on user only.)
    Right click and then on Security... to open.
  4. Click Enabled and then OK.

This will also increase your security but have consequences if users try to access a shared CD-ROM on your computer.
See Microsoft KB article Prompted for CD-ROM When You Run System File Checker While Correct CD-ROM Is in Drive (Q263499).

If you don't want to change your Security Settings, Ahead Software has made a tool that will help you grant access to low level drivers for users without administrative rights. Thus making it possible for them to burn CDs with Nero. Download Nero BurnRights from here.

  Change Drive Name and Icon.  
 

When you install your new DVD player you will find that it's still represented by the same old icon as your old CD player and even worse, it's also labeled Compact Disk.
To change the Drive Name or Icon (e.g. on your DVD drive). Start the Registry Editor (go to Start, Run and type Regedt32). Find the key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer. If the key doesn't exist add the new sub-key DriveIcons. Create a new sub-key D (D representing the drive letter of the drive you want to modify). Under the drive letter create the new sub-key DefaultIcon and set the REG_SZ string value to equal the fully qualified name of the icon file.
To change the drive description e.g. in Explorer, under the drive letter (D in this example) create the new sub-key DefaultLabel and set the REG_SZ string value to whatever name you want the drive to appear as in Explorer (e.g. DVD Disk).
After you're done you should have two registry keys looking like this:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\ CurrentVersion\Explorer\DriveIcons\D\ DefaultIcon and:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\ CurrentVersion\Explorer\DriveIcons\D\ DefaultLabel

Restart your system for this change to take effect.

Windows all versions. NOTE: "DefaultLabel" value only works with Windows 2000 and higher.

  Compatibility-Mode in Windows 2000 Service Pack 2.  
 

Windows 2000 provides an environment to run older programs, Win95 or NT4 programs, that experience issues with Windows 2000 in Compatibility-Mode. Compatibility-Mode more closely reflects the behavior of either Windows 95 or Windows NT4.
Compatibility-Mode is installed with Windows 2000 Service Pack 2 but is not enabled by default. To enable Compatibility-Mode:

  1. Log on as Administrator.
  2. Click Start, and then Run.
  3. In the Open box type the following:
    regsvr32 %systemroot%\apppatch\slayerui.dll
  4. Click OK.

Now you can right-click on a shortcut, then on Properties and then on the Compatibility tab. (This tab will only appear if the Compatibility-Mode Interface has been properly enabled on the computer). Select either Windows 95 or Windows NT4 in the drop-down box.

NOTE: Be vary careful if you use Compatibility-Mode to bypass version warnings in Setup or installation programs. Some software are designed for specific operating systems and can have the potential to cause serious problems if installed.

Windows 2000 only.

  Device Manager- Show Hidden Devices.  
 

The Device Manager normally only display the Plug and Play units that presently are installed. A not connected USB unit for example or an external modem that is not turned on is not visible at all. Even if you choose "Show Hidden Devices" this behavior will not change. If this is activated installed "Non Plug and Play" devices will be displayed but not Plug and Play devices that are not presently connected. This behavior can be changed.

  1. Log on as Administrator.
  2. Click Start, Settings, Control Panel, and then System.
  3. Click on the Advanced tab and then on Environment Variables...
  4. Add a new System Variable to the lower pane. The variable name should be devmgr_show_nonpresent_devices with the value 1.
  5. Click OK.

These devices will now be displayed grayed out but only when "Show Hidden Devices" is checked.

Restart your computer for this change to take affect.

  Disable Balloon Tips in Windows XP, Vista and 7.  
 

If you find the various pop-up warnings that appear in balloons above the system tray annoying you can easily turn them off.

Start the Registry Editor (go to Start, Run and type Regedt32). Find the key HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced and add the DWORD value EnableBalloonTips. To turn of Balloon Tips the value should be set to 0.
To turn on Balloon Tips set the value to 1.

Windows XP, Vista and 7. only.

  Disable the Passport pop-up in Windows XP.  
 

The first several times you start Windows XP. you'll get various pop-up warnings that appear in balloons above the system tray. You'll se one that says, in part, You need a Passport to use Windows XP Internet communication features... and to access .NET-enabled services on the Internet. Don't be fooled by this in to believing that you must set up a Passport account in order to use the Internet.
Dismiss the pop-up by clicking the X-icon at its top right. If you click anywhere else, you'll start the process of creating a Passport account.

As with other Windows systems there is also a way to do this by editing the Registry.
Start the Registry Editor (go to Start, Run and type Regedt32). Find the key HKEY_CURRENT_USER\Software\Microsoft\MessengerService and find the binary value PassportBalloon. Double-click it, delete the old value and enter 0A.
The value should now be 0A 00 00 00.
On a multi-user computer you will probably want to do this for each account.

Windows XP keeps a count in the Registry of how many times the Passport balloon has been displayed and it stops after you have logged on to your account ten times. The Registry hack above stops it by setting the counter to ten.

Windows XP only.

  Disable Automatic Document Shortcuts in My Network Places.  
 

Every time you open a document via a network -from a resource without a drive letter- Windows will automatically create a short cut to that document in My Network Places. If you open a lot of document this way the list in My Network Places soon becomes cluttered and confusing. This makes this function less useful.

To turn of this function start the Registry Editor (go to Start, Run and type Regedt32). Find the key HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer and add the DWORD value NoRecentDocsNetHood. Set the value to 1.
To turn on the function set the value to 0.

Windows XP/2000/ME.

  Enable Routing in Windows 2000 Professional.  
 

If you install multiple network cards (NICs) in a computer running Windows 2000 Professional there is no really convenient way to enable routing. Yet, if you want the computers on the different networks to be able to talk to each other you need to enable routing on the computer where the multiple network cards are installed.
Both Windows NT Workstation and Server offer convenient dialog boxes (under the Network/Protocols/Routing tab and tick "Enable IP Forwarding") to enable routing and so does Windows 2000 Server.

Windows 2000 Professional is different, though. To enable routing in Windows 2000 Professional you need to use Regedt32 and find the key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
and select IPEnableRouter. To enable IP routing for all network connections installed on this computer, assign a value of 1.
To do this, click on the value IPEnableRouter, go to the Menu, click on Edit, and then click on DWORD.

In Windows 95/98/Me the Registry Key is:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\VxD\MSTCP
and select EnableRouting and assign a value of 1.

You need to reboot your computer for this change to take effect.

NOTE: Routing between networks using a software router (e.g. a computer running Win95/98/Me/NT4/2000) only works when routing Ethernet networks or Ethernet - USB networks. To route a 802.11b Wireless network you must use an Access Point with a router.

  Function "Open with" in Explorer.  
 

When you right click on a file in Explorer and use the function "Open With…" the check box "Always use this program to open this type of file" often is automatically checked, thus making it easy to accidentally change a file association.
With a simple Registry hack you can make sure that you always have to check this yourself, should you like to do such a change. Use Regedt32 and find the key:
HKEY_CLASSES_ROOT\Unknown\shell\openas\command. Under that key is a string that looks like this:
%SystemRoot%\system32\rundll32.exe %SystemRoot%\system32\shell32.dll,OpenAs_RunDLL %1
Open the value and add %2 preceded by a space, as the last entry in the string:
%SystemRoot%\system32\rundll32.exe %SystemRoot%\system32\shell32.dll,OpenAs_RunDLL %1 %2

Works with Windows 95/98, NT and Windows 2000.

  Function "Open with" always available.  
 

If you press shift when you right click on a file in NT Explorer you get an extra alternative on the right click menu, "Open With…". If you like to have this alternative every time you right click on a file in NT Explorer you can add this option by editing your Registry.
The easiest way to achieve this is to open NOTEPAD and write the following lines and save the file with the ending .reg.

REGEDIT 4
[HKEY CLASSES ROOT\*\shell\openwith]
[HKEY CLASSES ROOT\*\shell\openwith\command]
Double click on the file and click yes when prompted if you like to add the information to the Registry.
************ CAUTION ************
This will add this option to all file types.
********************************
If you just want to add this option to selected file types you can of course do this by opening Registry and make the change to the selected file type.

Works with Windows 95/98, NT and Windows 2000.

  Increase toolbar icon size in Internet Explorer 9.  
 

If your Windows 7 came with Internet Explorer 9 pre-installed or if you upgrade from IE8 to IE9 you might find out that your toolbar icons are too small. If you like your tool bar icons larger there is a registry hack that will set them to large. To increase your IE9 icons go open the Registry Editor and navigate to
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\CommandBar. Add the DWORD SmallIcons and set the value to 0.

Windows 7 with IE 9.

  Increased security. Clear virtual memory pagefile on system shut down.  
 

An extra security precaution is to clear the virtual memory pagefile on system shut down, so that no one with access to the hard drive can use it to search for information.

  1. Go to Start, Settings and then Control Panel.
  2. Click on Administrative Tools and then Local Security Policy.
  3. Navigate to Security Settings, Local Policies, Security Options and then to Clear virtual memory pagefile when system shuts down. Right click and then on Security... to open.
  4. Click Enabled and then OK.

Note: One side effect on a system with a very large pagefile is that system shut down will take longer. This is because the shutdown process must physically write to each page in the pagefile to clear the page.

Windows 2000 and Windows XP.

  Increased security. Disable POSIX.  
 

Windows 2000 and XP still come with the POSIX subsystem. The POSIX allows the use of Unix commands. By disabling POSIX you prevent hackers from using Unix commands against your system.

To disable POSIX.

  1. Use Regedt32 and find the key:
    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\SubSystems.
  2. Click on the multistring called Optional in the right hand pane. Delete the value POSIX and leave the space empty (don't delete the Optional multistring).
  3. Then click on the POSIX multistring in the same pane. It will point to a file in your Windows System32 folder called Psxss.exe. Using Windows Explorer delete or rename the file Psxss.exe then use Regedt32 to delete the POSIX multistring.

Note: One side effect on a system with a very large pagefile is that system shut down will take longer. This is because the shutdown process must physically write to each page in the pagefile to clear the page.

Windows 2000 and Windows XP.

  Increased security. Prevent creating Dump file and DrWatson32.log file.  
 

The Dump file or the DrWatson32 log file may be helpful when diagnosing a system crash, but like the swap file they can also present a security risk, storing a lot of sensitive, unencrypted data.

To prevent Windows from creating the Dump File:

  1. Go to Start, Settings and then Control Panel.
  2. In the Control Panel click on System and then the Advanced Tab.
  3. Click on the Settings button on the Startup and Recovery pane. Set the drop-down menu under Write debugging information to (none).

To disable DrWatson and to prevent it from creating the DrWatson32.log file:

  1. Use Regedt32 and find the key:
    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsNT\CurrentVersion\AeDebug.
  2. Set the Auto string to 0.
  3. Then use Windows Explorer and go to Document and Settings\All Users\Shared Documents\DrWatson\. DeleteUser.dmp and DrWatson32.log.

Windows 2000 and Windows XP.

  Increased security for NetBios over TCP/IP.  
 

Many hacker attacks derive from so called "null-session attacks". In short, a null-session attack means that the hacker logs on anonymously and have access to all of that groups user rights. This is possible with the NetBios protocol. The hacker then lists usernames and workgroups or tries to find the name for the administrator account should that have been renamed. One way to increase security is to add a value to the Registry Key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa.
This value should be: RestrictAnonymous and should be of the type: REG_DWORD and the value set to: 1.
Adding this value to the Registry Key will prevent some of the information leakage but not all.

Works with Windows NT4 service pack 3 or higher.

Note: With Windows 2000 and XP Microsoft has already added the value to that key but it is set to 0 by default. To increase your security you should change this value to 1. If you have only Windows 2000 in your network and therefore don't need to worry about legacy support you can disable NetBios over TCP/IP totally. You do so under "Advanced TCP/IP Settings" and under the WINS tab, choose "Disable NetBios over TCP/IP". Found under "Network and Dial-Up connections" in the Control Panel. This will further increase your network's security.

Windows NT4, Windows 2000 and XP.
You can read more here about how to change the Local Security Policy to completely disable "null-sessions" here.

  Increased security. Turn of Windows XP, IExplorer and Office XP Bug Report.  
 

In the event of a program crash with Microsoft Internet Explorer version 5 and 6, Office XP and also Windows XP the user have the option to send debugging information to Microsoft. In theory this sound like a smart function which should help Microsoft create more stable software. However, users sending these reports should be aware that sensitive or personal information may be sent to Microsoft along with debugging information. The relevant dialog box does not make it obvious that the contents of the document being edited may be sent along with information about the program crash.

Users or corporate IT staff may wish to turn of this function. The U.S. Department of Energy's Computer Incident Advisory Capability office (CIAC) has released an excellent security bulletin. At their site you can learn how and also download scripts that does the job of disabling this function in IExplorer and Office XP for you. Read it and learn how here.

To disable this function in Windows XP itself go to Start, Control Panel and then System in System Properties open the Advanced tab and then to Error Reporting click Disable Error Reporting. Click OK twice.
Or you can make the following changes to the registry. Open Regedit and find the key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\PCHealth\ErrorReporting. Change the DoReport Value Name, a REG_DWORD data type, and set the data value to 0 to disable sending.

  Installing Windows 7 on a Compaq 730EO (HP Mini). Bluetooth doesn't work.  
 

Installing Windows 7 Home Premium (or any other skew of Windows 7 for that matter) replacing the original Windows XP installation is easy. Everything should work as before, camera, wireless network card etc. are identified and installed correctly. But, there is one caveat though; Bluetooth is nowhere to be found. No drivers are installed and it doesn’t turn up in Device Manager.
If you try to install the Bluetooth drivers you are told to go to the Device Manager to turn Bluetooth on!
But how do you do that if it’s not in Device Manager?

There is an easy solution to this dilemma though. You probably remember that your old XP installation had something called HP Wireless Assistant.
Image. HP Wireless Assistant.
This is what you need to install prior to installing any Bluetooth driver packages.
The HP Wireless Assistant is sp45222.exe and should be found on the HP Web Site.
After installation and a reboot you will now see Bluetooth in the Device Manager. Make sure it’s turned on. Then download and install sp49153.exe which also should be found on the HP Web Site (Make sure you download both packages from a legitimate HP Web Site or FTP). Installing sp49153.exe will take awhile and require an Internet connection since sp49153.exe will contact Microsoft for the correct updated drivers etc.
After a reboot you should now have a proper functioning Bluetooth just as you had on your old XP installation.

Windows 7 (and probably Vista too).

  Internet Explorer Fitted-Width Printing.  
 

Have you ever printed a web page only to find that the right-hand edge is missing? This is for you. First, this download page will install the control. If you have blocked installation of ActiveX controls you need to temporarily allow installation of ActiveX controls. After installation, close the browser window and reopen a new one. You should have a new printer icon with a small 'W' next to it on the toolbar, if you don't, right click on the toolbar and choose customize and find the icon in the left pane. When you have the icon on the toolbar, press this to bring up a print dialog which will then print the page fitted to the width of your paper. Alternatively, hold down the Control key while pressing the button and you will get a print preview instead.

Applies to all versions of Windows with Internet Explorer installed.

  Internet Explorer - Increase the number of concurrent downloads.  
 

By default Internet Explorer limits the number of concurrent downloads to two. This limitation make sense with a modem connection but not so much if you have a broadband connection. If you want to increase the number of concurrent downloads this can easily be achieved through a Registry hack.

Start the Registry Editor (go to Start, Run and type Regedt32). Find the key HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings. Create a new REG_DWORD value of MaxConnectionsPerServer then create yet another REG_DWORD value of MaxConnectionsPer1_0Server. Set both values to the number of concurrent downloads you want to be able to do. A number higher than 8 is not recommended.
Restart your system for this change to take effect.

Applies to all versions of Windows with Internet Explorer installed.

  Internet Explorer 6 - Turning Off the Image Toolbar.  
 

If you don't like the new IExplorer 6 browser feature, the Image Toolbar, it can easily be turned of.

  1. On the IExplorer Menu Bar click on Tools and then Internet Options.
  2. Click on the Advanced tab.
  3. Navigate to Multimedia and untick Enable Image Toolbar (requires restart).
  4. Click OK.

Read more about Internet Explorer 6 and its new features here.

Applies to all versions of Windows with Internet Explorer 6 installed.

  Internet Explorer 8 - InPrivate Filtering always on.  
 

Configuring InPrivate Filtering to be always on. InPrivate Filtering is something many users appreciate but the default behavior of IE8 is that the user needs to manually trigger this every browser session. To overcome this and always start IE8 with InPrivate Filtering there is a Registry setting to start InPrivate Filtering with every browser session (this setting can than of course be manually changed during the session).

Start the Registry Editor (go to Start, Run and type Regedt32). Find the key HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Safety\PrivacIE. Create a new REG_DWORD value of StartMode then set the value to 1 or 2 for "Choose content..." or 0 for Off.
Restart your system for this change to take effect.

Applies to all versions of Windows with Internet Explorer 8 installed.

  IP - Alternate Configuration.  
 

If you often move your laptop between two locations, like between your office and your home, and one of your locations requires a static IP address, the alternate IP configuration feature under TCP/IP in Windows XP can be handy. You can then specify that IP address, gateway and DNS server address information in the Alternate Configuration tab of the TCP/IP Properties.
When your computer starts it automatically attempts to obtain an address from a DHCP server. If no DHCP server is found, the alternate IP address information is used.
If a DHCP server is found (which is normally the case on e.g. your home network with an Internet connection), the system uses the DHCP-provided address instead.

Applies to Windows XP.

  IrDA - Installing Virtual Infrared COM Port under Windows 2000 and Windows XP.  
 

Under Windows 2000, infrared devices are no longer handled as a Serial COM device and there is no native support in Windows 2000 for Virtual Serial Ports.
However, to use certain devices, such as Cell Phones for dialing an Internet Service Provider to have Internet access while on the road, or to be able to synchronize your Cell Phone with Outlook on your computer, you need to install software that treats the IrDA device as a Serial COM device.

Provided that you have an IrDA Infrared Adapter already installed and configured on your computer you can download the software Irdaw2k and install it on your computer. This will give you a Virtual Infrared COM port on your computer.

You can download Irdaw2k from http://www.cyber-mill.com/irdaw2k.zip.
However, those drivers are kind of old now and they haven't worked well with Windows XP. There is a more recent driver that works really well with both Windows 2000 and Windows XP at http://www.stud.uni-hannover.de/~kiszka/IrCOMM2k/English/index.html

After unzipping the files to a folder just run Setup. The setup program will run as a silent install and requires no interaction on your part. After short time you will se a dialog that says that Virtual COM was successfully installed. Just press OK. A Virtual Infrared COM port has been added to your COM ports.

There are some issues though. To be able to successfully use synchronization software such as TrueSync or your Cell Phone as a modem you may, depending on your software or device, have to go to Start, Settings, Control Panel and open Wireless Link. In Wireless Link click on the Image Transfer tab and untick "Use Wireless Link to transfer images from a digital camera to your computer." and "Explore location after receiving pictures."

Applies to Windows 2000 and Windows XP.
Windows 95/98, NT4 already supports Virtual COM Ports.

  Irftp - A convenient way to transfer files between Infrared capable Units.  
 

If you need a convenient way to transfer files to and from other Infrared capable units, e.g. handheld devices or laptops, you can do the following.

  1. Click Start, and then Run.
  2. In the Open box type irftp
  3. Click OK.

This will open an easy to use Wireless Link dialog box.
Use it much? Create a shortcut on your Desktop.

Applies to Windows 2000.

  Opening an Office application messes up the clipboard.  
 

Symptom: You copy something to Windows Clipboard. Thereafter you open your Office application, e.g. Word, Excel, Outlook or Access, and try to paste what you previously copied. Instead of the image or text you previously copied you get something like a black blob. Open any other application like Photoshop after you opened your Office application and try to paste into that application and you probably see the same result, no text or image just a blob.

The culprit here is in all probably an Office add-in, the Send to Bluetooth from Motorola (btmoffice.dll) add-in.

Fixing this is easy, just open the Office application in which you have trouble and go to Options, Add-ins. When the add-ins manager opens look at the bottom (in Office 2007) for Manage and make sure the drop-down list is set to COM Add-ins and the click on the Go button.
Untick the Send to Bluetooth tick box and then OK. The next time you restart your office application the problem should be solved. Note that you need to do this for every Office application with the Send to Bluetooth add-in enabled, you need to open them one by one, Word, Excel etc.

There is also one caveat depending on your UAC settings. When you try to untick the tick box you might encounter “This add-in is installed for all users on this computer, and can only be connected or disconnected by an administrator” even if you have administrator privileges. If so, right click on the Office shortcut, Properties and go to the Compatibility tab and under Privilege Level tick the Run this program as an administrator tick box.

Office 2003, 2007 and 2010.

  Outlook Express, how to prevent long delay when opening after removing Windows Messenger.  
 

If you remove Windows Messenger or prevent it from starting you will experience a long delay when you start Outlook Express if you have the Contacts pane enabled.
This is because Outlook tries to start Windows Messenger before firing up. To prevent a long delay when opening Outlook Express if you have the Contacts pane enabled.

Start the Registry Editor (go to Start, Run and type Regedt32). Find the key HKEY_LOCAL_MACHINE\Software\Software\Microsoft\Outlook Express. Click in the right pane and create a new REG_DWORD value Give it the name Hide Messenger. Set the value to 2.

Windows XP.

  Outlook blocked access to the following potentially unsafe attachments: [...].  
 

Outlook 2002 includes a new security feature that blocks attachments considered unsafe. If you receive an e-mail message that contains one of the blocked file types, you will see the following warning message:
Outlook blocked access to the following potentially unsafe attachments: [...]
Although access to the attachment has been blocked, the attachment still exists in the message.

Of course you can manipulate the registry to allow access to these attachments. Or you can let this applet, Outlook 2002 Attachment Security Unlock Applet, from Visiontech do it for you.

Outlook 2002 Attachment Security Unlock Applet requires Outlook 2002. It will not work with Outlook 2000 or lower.

  How do to add the Outlook 2003 Icon to the desktop.  
 

Once you have installed Outlook 2003, you may notice that the Outlook Icon is no longer placed on the desktop. This change was made because of Microsoft's new "clean desktop" strategy under which a Windows Logo Certified program is no longer allowed to put a Default Icon on the desktop.

To get the Icon back on the desktop open the Registry Editor. Find the key HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Desktop\NameSpace\. On the Edit menu, click Add Key, and then add the following registry key: {00020D75-0000-0000-C000-000000000046}. This adds the Icon to the current logged on user. To add the Icon to all users on the computer, instead add the key to: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Explorer\Desktop\NameSpace\.

Notice: The Outlook Icon did, with Outlook XP and below, provide some additional MAPI profile configurations if right-clicked. This may no longer work with the Outlook 2003 Icon and Explorer may instead tend to crash if the Icon is right-clicked.

Works with Outlook 2003. This tip will also work with all other versions of Outlook if you accidentally have deleted the Outlook Icon from the desktop.

  Outlook; you can't remove "Attach as Adobe PDF" from the New Mail toolbar.  
 

After you installed Adobe Acrobat 6 you find that you have a new button on the New Mail toolbar in Outlook and even if you remove it it comes back.

Start the Registry Editor (go to Start, Run and type Regedt32). Find the key HKEY_LOCAL_MACHINE\Software\Microsoft\Office\Outlook\Addins\PDFMOutlook.PDFMOutlook\. Find the REG_DWORD value LoadBehavior. The value is set to 3 =the button is visible in the Outlook toolbar. Set the value to 0 =the button will not show in the toolbar the next time you want to send an e-mail. You can always reset the value to 3 if you want the button to reappear in the toolbar.

Works with Outlook 2002 or 2003 and Adobe Acrobat 6.
It may or may not work with other versions of Outlook and Adobe Acrobat or combinations thereof.

  Pasting into Outlook 2007 produces blue question mark.  
 

There are several reasons why this is happening and one is the above mentioned Send to Bluetooth add-in. If you instead of the black blob get a blue question mark and you have an HP computer try the following.

  1. go to the windows control panel and open "HP ProtectTools Security Manager"
  2. on the bottom left, click on "Administration"
  3. click on "Settings" on the left under "Applications"
  4. select the "Applications" tab
  5. uncheck "Privacy Manager"
  6. click "Apply" and close the window
  7. close and reopen Outlook

Works with Outlook 2003, Outlook 2007 and probably also Outlook 2010 and Outlook 2013 and above.

  Remove "Standby" option from shutdown menu.  
 

On a computer with Advanced Power Management there is a Standby option under the Shut Down menu.
If you for some reason want to prevent users from having this option it can be removed with the following Registry hack.

Start the Registry Editor (go to Start, Run and type Regedt32). Find the key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ACPI\Parameters. Click in the right pane and create a new REG_DWORD value. Give it the name Attributes. Set the value to 00000070.
After reboot, Standby is unavailable.

Windows XP.

  Screen Saver Password Protection Policy.  
 

You can use this registry setting to determine whether the screen saver is password protected and it also prevents users from changing the password-protection setting.

Start the Registry Editor (go to Start, Run and type Regedt32). Find the key HKEY_CURRENT_USER\Software\Policies\Microsoft\Windows\Control Panel\Desktop. Create a new REG_DWORD value of ScreenSaverIsSecure. Then sett value to 0 =the screen saver is not password protected or to 1 =the screen saver is password protected.
Restart your system for this change to take effect.

Windows 2000/XP only.

  Solid Edge V12 Tooltips flyouts misbehave under Windows XP.  
 

When you install Solid Edge V12 under Windows XP you will notice that the Tooltips flyouts sometimes have a text that doesn't correspond with the icon. The "New file" icon will have the text "Open" etc. The manifest files delivered with Solid Edge, which under Windows XP directs Windows XP to load the wrong version of Microsoft Common Controls, cause this problem.

To correct this problem you have to delete the manifest files located in the Solid Edge V12\Program folder. There are two files:
Solid Edge V12\Program\Edge.exe.manifest
Solid Edge V12\Program\Edged.exe.manifest

This is a problem with Windows XP up to and including Service Pack 1. Future Service Packs may or may not include a fix.

Windows XP only.

  Tweak Context Menus.  
 

Context menus have become more and more useful but also more cluttered with all extra entries, options and features you don't need. Entries from programs you rarely use can clog your menu. This is how you get your menus back under control.

Open the Registry Editor, go to the Registry Key:
HKEY_CLASSES_ROOT\*\shellex\ContextMenuHandlers. Look through the list until you find the entry you want to remove. Right-click the folder of the entry and select Delete.

Windows 2000, XP and Vista.

  Windows 2000 hangs due to AMD AGP paging issue.  
 

Windows 2000 based computers may stop responding when you use an Accelerated Graphics Port (AGP) program with an AMD Athlon processor. This is due to the memory allocated by the video adapter driver becoming corrupted.

AMD has issued a registry patch which can be downloaded from here.

Download the .reg file and double click it to install the patch. Restart your computer for the settings to take effect.

If you feel more comfortable creating the registry entry yourself, go to the Registry Key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SessionManager\Memory Management. Create a new DWORD value called LargePageMinimum and set it to 0xffffffff.

Another solution worth trying if you experience this type of behavior with Windows 2000 and an earlier model AMD processor e.g. K6-2 or K6-III is to go into your BIOS and find Memory Size of AGP port, Graphic Aperture Size or something similar and lower the value. E.g. if the value is 256 MB, lower it to 64 MB, if the value is 64 MB try 8MB.

Windows 2000. (This problem and solution may also apply to Windows XP but we have not confirmed this).

  Windows 2000 and XP. How to disable Windows 2000 SP3's/Windows XP auto updating.  
 

After installing Windows 2000 Service Pack 3 there are a few new services that you might consider disabling to avoid that Windows, on its own, install new updates to your system. Updates that Windows installs in the background and that might break other mission critical software on your system. These new Windows 2000 features are already installed on a Windows XP system. If you have a Windows XP computer you too, might want to disable them using this guide.

Go to Control Panel, Administrative Tools, Services. Find Automatic Updates, and change startup type to Disabled. Also set Background Intelligent Transfer Service to Disabled. While you’re at it, Remote Registry Service is probably also something that you want to consider setting to Disabled (although Remote Registry Service is not new and part of Service Pack 3. It was part of the original Windows 2000 installation).

Then from the Start menu, run gpedit.msc, the group policy editor. Go to User Configuration, Administrative Templates, Windows Components, Windows Update. In order to remove access to Windows Update, you set it to Enabled. Notice, this will block access to all Windows Update features but should you want them in the future you can always turn them back on.

Windows 2000 and Windows XP.

  Windows 2000/XP Disk Cleanup utility hangs.  
 

If Windows 2000/XP Disk Cleanup utility freeze on start up or hangs the system this is probably caused by the Disk Cleanup Wizard checking for all files older than 50 days that it can compress. To disable this behavior.

Start the Registry Editor (go to Start, Run and type Regedt32 or Regedit). Find the key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\VolumeCaches\Compress old files. Delete the Compress old files subkey. To be able to restore it later should you change your mind you might want to export the key before you delete it.

Windows 2000 and Windows XP.

  Windows Desktop Update.  
 

If you install IE 5 or IE6 on a Windows NT4 system that never had IE 4, you don't get Windows Desktop Update (WDU), it's not included in the IE 5 nor the IE6 update. The Windows Desktop Update include the following enhancements:

  • The Active Desktop.
  • A single, customizable Explorer with Web View.
  • A Web-integrated Start menu and taskbar.
  • Click (rather than double-click) items to open them; point at items to select them.

If you like to have the Windows Desktop Update installed, without the hassle to have to uninstall IE 5, installing IE 4 with WDU and then reinstalling IE 5, execute the following command from the folder that contains IE5Setup.exe:
IE5Setup.exe /C:"ie5wzd /e:IE4Shell_NTx86 /I:Y" or you can use:
IE6Setup.exe /C:"ie6wzd /e:IE4Shell_NTx86 /I:Y" if you have IE6Setup.exe.
This command will download and install the necessary files.
Note. For Win95 the switch is:
IE5Setup.exe /C:"ie5wzd /e:IE4Shell_WIN /I:Y". There is no installation of IE6 under Win95. To install IE6 under NT4 Service Pack 6a is required.

NOTE: There is method to install the Windows Desktop Update component directly from the Internet Explorer 5.0 setup process all at once described at NTFAQ.com.
You should use the method at the NTFAQ.com site if you want to add the Desktop Update and install IE all at once or if trying to upgrade the desktop component under Win98 1st edition (to use the method at NTFAQ.com for Win98 edit the 'iesetup.cif' file & in the [IE4Shell_Win] section change the part that reads 'Platform=Win95' to 'Platform=Win95,Win98' & change 'UIVISIBLE=0' to 'UIVISIBLE=1' and save the file; this method won't work with IE 6 because the desktop update is not included for Win95/98).
Win98 2nd edition & higher users don't have to do this as they already have the latest versions of the desktop component.
Many thanks to Emmanuel Piring for pointing out this method and for pointing out that IE6Setup.exe was also possible to use.

Works with Windows 95, Windows 98 1st edition and NT.
Windows 98SE/Me and Windows 2000/XP already have Windows Desktop Update as an integrated part.

  Windows Media Player (WMP), prevent from processing HTML scripts contained within media files.  
 

To secure WMP against script attacks, disable WMP's HTML-processing feature.

Start the Registry Editor (go to Start, Run and type Regedt32 or Regedit). Find the key HKEY_CURRENT_USER\Software\Microsoft\MediaPlayer\Preferences subkey. From the Edit menu, select New, DWORD Value.
Enter a name of PlayerScriptCommandsEnabled. Set the new value to 0 to prevent WMP from processing HTML scripts in media files.

Windows all versions.

  Windows Media Player, prevent Web checks for updates.  
 

When you run Windows Media Player it periodically checks the Web for updates. But there is a way to disable this behavior.

Windows Media Player 6.4
Start the Registry Editor (go to Start, Run and type Regedt32). Find the key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MediaPlayer. Add the REG_SZ string value EnableAutoUpgrade and set the value to No.

Windows Media Player 7.0 or later.
Start the Registry Editor (go to Start, Run and type Regedt32). Find the key HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft. Create a new sub-key WindowsMediaPlayer. Add the REG_DWORD string value DisableAutoUpdate and set the value to 1.

Windows all versions.

  Windows XP cannot delete files.  
 

There is a known bug in XP which blocks you from deleting certain file extensions. These are most often simple files like videos (AVI), MP3s or other such files. When you try to delete the file, Windows waits a few seconds before announcing that access is denied, the file is currently in use and cannot be deleted.
If you search the Internet you find more or less complicated solutions for this problem but one thing that might be worth trying before going a more complicated route like a Registry change is to open the Command Prompt and try to delete the file.

The reason for this behavior is that the bug in XP causes Explorer to read the entire contents of broken files before allowing any access to them. This bug is more obvious with media files and other large files than with smaller text files since the file just takes longer for XP to read.

Windows XP.

  Windows XP cannot find helpctr.exe file.  
 

When you click on Help and Support in the start menu, you get the error message "Windows cannot find 'Helpctr.exe'. Make sure you typed the name correctly,..." The weird thing is, if you do a search for the file (helpctr.exe), you get numerous results.

The cause of this error message may be a corrupt Registry Key. Start the Registry Editor (go to Start, Run and type Regedt32). Find the key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\HELPCTR.EXE. Make sure that the key reads HELPCTR.EXE not HELPCTR:EXE. Notice the colon between HELPCTR and EXE instead of a dot. If there is a colon replace it with a dot and Help and Support Center should start normally again.

If you have used Easy Cleaner or RegClean on your computer this might be the cause of your problems. If this is the case there is a solution at this site http://www.dougknox.com (look under Win XP Fixes) that might be worth checking out. Our readers have reported that this solution has in fact cured problems with Help and Support Center after the use of the above mentioned tools.

Windows XP.

  Windows XP doesn't boot and you can't access the System Restore Console.  
 

With Windows XP you can use Restore Points to fix minor problems caused by misbehaving programs etc. But sometimes when Windows XP crashes completely it isn't much of an help. When you use the F8 key to boot into Safe Mode and the try to use the System Restore Console (Rstrui.exe) in the System32\Restore folder you receive various errors for missing dll files etc. If you been conscientious and planed ahead and backed up your registry you may still be able to use PE Builder to restore your registry.

The instructions for this doesn't fit on this page. Go to http://www.nu2.nu/pebuilder/ to read about PE Builder and learn how to use it.
You can learn more about how to backup the Registry on this Microsoft page.

Windows XP and Server 2003.

  Windows XP doesn't Remember Folder Settings Anymore.  
 

Windows XP is by default set to remember 400 different folder settings. If you have more than 400 folders on your system, then they will start to loose their settings at random. Since Windows XP is a modern system intended for users on very big systems most users will sooner or later hit this limit. But his limit can be increased and this annoying behavior fixed.

Start the Registry Editor (go to Start, Run and type Regedt32). Find the key HKEY_CURRENT_USER\Software\Microsoft\Windows\Shell. Add the REG_DWORD value BagMRU Size and set the value to 3e8.

Find the key HKEY_CURRENT_USER\Software\Microsoft\Windows\ShellNoRoam. Add the REG_DWORD string value BagMRU Size and set the value to 3e8.

Or if you prefer, you can download and use this .reg file.

Windows XP now remembers the settings of a 1000 folders. Use the value 7d0 instead and Windows XP will remember 2000 folders.

Windows XP.

  Windows XP Home, Safe Mode is missing.  
 

When you press the F8 key to invoke the Windows Advanced Options Menu so that you can choose the Safe Mode option you get the Windows Boot Manager instead.
This seems to be a particularly common phenomenon with Netbooks which typically have Windows XP Home installed.

To solve this and get into the Windows Advanced Options Menu, press Enter, and then immediately begin tapping the F8 key. The Windows Advanced Options Menu should now appear and you can scroll to the Safe Mode menu item.

Windows XP.

  Windows XP Improved Search Function.  
 

Did you know that when you search for files containing a word Windows XP may not search inside all your files? This behavior occurs because Windows XP doesn't search inside files that are not registered in Windows. The chance that the word that you are looking for would be inside a non registered file type may be small but if you want to be sure that you find what you are looking for you can make the following change in Windows Registry.

Start the Registry Editor. Find the key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\ContentIndex. In the right pane find the value FilterFilesWithUnknownExtensions and set the value to 1 (the default value is 0).

Windows XP.

  Windows XP Remote Desktop Connection connection error.  
 

Windows XP's When you try to connect to a remote computer with Remote Desktop Connection or Remote Desktop Web Connection you may recive the following error: "The connection was ended because of a network error. Please try connecting to the remot computer again".
A potential race condition between the Icaapi.dll and Rdpwsx.dll dynamic-link libraries (DLLs) may cause the private certificate key on the Terminal Services server (the remote computer) not to be synchronized.

To fix this:
On the Terminal Services server (the computer you are connecting to) start the Registry Editor. Find the key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TermService\Parameters. Under this registry subkey, delete the following values:

  • Certificate
  • X509Certificate
  • X509 Certificate ID

Quit Registry Editor, and then restart the computer.

Read the full Microsoft Knowledge Base Article - 323497.

Windows XP.

  Windows XP slow shutdown and EventID 1517.  
 

If you experience slow logoffs and the computer takes a long time to save your user profile this is probably caused by a driver or application leaking registry handles. With this an administrator will typically see EventID 1517 with Windows XP and 1524 with Windows 2003 Server.
Microsoft released a service called UPHClean (User Profile Hive Cleanup Service), which checks for leaked connections to the registry and cleans them up.

This program can be downloaded from Microsoft. There you can also read the full Microsoft article.

Windows XP, Windows 2003 Server and also Windows 2000.

  Windows XP SP2 EventID 4226. Service Pack 2 limits the number of simultaneous incomplete outbound TCP connection attempts.  
 

After Service Pack 2 has been installed on a Windows XP machine the TCP/IP stack limits the number of simultaneous incomplete outbound TCP connection attempts to 10. After the limit has been reached, subsequent connection attempts are put in a queue and will be resolved at a fixed rate. Under normal operation, when applications are connecting to available hosts at valid IP addresses, no connection rate-limiting will occur. When it does occur, a new event, with ID 4226, appears in the system's event log. This is a good change. This change helps to limit the speed at which malicious programs, such as viruses and worms, spread to uninfected computers.
However, if you use programs that open connections to every single source it can find on the network some users with high speed connections may find themselves choked.

There is a patch available at http://www.lvllord.de/ which fixes the problem. The patch will default to a maximum of 50 simultaneous connections. With the higher number of connections the security benefits are almost the same, but less of nuisance to the normal user.

Read the full Microsoft Article - Changes to Functionality in Microsoft Windows XP Service Pack 2.

Windows XP with Service Pack 2.

  Windows XP's Task Manager default setting doesn't show PIDs.  
 

Windows XP's Task Manager default setting doesn't show PIDs. PIDs are useful when you for example need to identify which program is accessing the Internet. If you type Netstat -no you get a list of programs that are currently accessing the Internet, what IP number and port that program is using and also its PID. Useful when tracking erroneous software, trojan horses etc.

Since the Windows XP Task Manager's default setting doesn't show PIDs, make it do so by choosing its View, then the Select Columns dialog. Then check "PID" and click OK.

Windows XP (the netstat can of course be used with all versions of Windows).

  You cannot access your old and trusty NAS nor any of its files from your brand new Vista machine.  
 

Users of Microsoft's Vista operating system may experience that they cannot connect to their trusty old NAS server. The same also holds true if they try to connect Vista to an older Linux system on their local network. The technical reason behind this is because Microsoft Vista's default security policy is to only use NTLMv2 authentication and NTLMv2 authentication is not supported by older versions of Samba. Many NAT servers are based on Linux and Samba.
Newer Linux based systems run Samba 3 and up and should note be affected by this problem. NTLMv2 authentication is supported in Samba 3.0.

To get Vista to work with older versions of Samba is very simple. The best way is to change your Local Security Policy but depending on your version of Vista Local Security Policy may not be accessible, this may apply to you if you have Vista Home or Vista Home Premium.

To change Vista's behavior through Local Security Policy:
Open the Run command and type secpol.msc and click OK. Navigate to Local Policies and then Security Options. Find the policy Network Security: LAN Manager authentication level and open it. In the dialog box change the setting to: LM and NTLM - use NTLMV2 session security if negotiated. Click OK and reboot your system.

Windows Vista will now be able to view network drives based on Samba servers.

If Local Security Policy is not available to you there is a registry hack you can use:
Start the Registry Editor. Find the key HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Lsa\LMCompatibilityLevel. Set the REG_DWORD value 1.
If it doesn't already exist, create a DWORD value named LmCompatibilityLevel with the value of 1.

Windows Vista.