[quote author=“Rahul”]The latter one is actually Windows Messenger and thats installed by default with windows xp.
Here’s how to disable it:
http://support.microsoft.com/?kbid=302089
thanks but totally bogus! these instructions dont work with outlook 2003 (options not there) nor are the registry entries on my XP! i dont see how it’s being kicked off, but it is. deleting the program files just makes more problems like errors and there is no uninstall feature. what a MS hose job!
To prevent Windows Messenger from signing in when you run Outlook:
In Outlook, click Options on the Tools menu.
On the Other tab, click to clear the Enable Instant Messaging in Microsoft Outlook check box.
Click OK.
Windows Messenger 4.5 or Later on Windows XP Home Edition-Based or Windows XP Professional-Based Computers
Start Registry Editor (Regedit.exe).
Locate and click the following registry key:
HKEY_LOCAL_MACHINE\Software\Policies\Microsoft
On the Edit menu, point to New, click Key, and then type Messenger for the name of the new registry key.
Locate and click the following registry key:
HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Messenger
On the Edit menu, point to New, click Key, and then type Client for the name of the new registry key.
Locate and click the following registry key:
HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Messenger\Client
On the Edit menu, point to New, click DWORD Value, and then type PreventRun for the name of the new DWORD value.
Right-click the PreventRun value that you created, click Modify, type 1 in the Value data box, and then click OK.
Quit Registry Editor.
NOTE: This method also prevents programs that use the Messenger Application Programming Interfaces (APIs) from using Windows Messenger. Outlook 2002, Outlook Express 6, and the Remote Assistance feature in Windows XP are examples of programs that use these APIs and that depend on Windows Messenger.
The information in this article applies to:
Microsoft Windows Messenger 4.0
Microsoft Windows Messenger 4.5
Microsoft Windows Messenger 4.6
Last Reviewed: 2/20/2004 (7.1)
Keywords: kbenv kbhowto KB302089