Use the Group Policy (gpedit.msc) snap-in to turn on the Do not allow Windows Messenger to be run option.
- To use the Group Policy snap-in, you must be logged on to the computer using an account that has administrator permissions.
- This method prevents programs that use the Messenger APIs from using Windows Messenger. Microsoft Outlook 2002, Microsoft 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.
- Click Start, click Run, type gpedit.msc, and then click OK.
- In Group Policy, expand Local Computer Policy, expand Computer Configuration, expand Administrative Templates, expand Windows Components, and then expand Windows Messenger.
- Double-click Do not allow Windows Messenger to be run, and then click Enabled.
- Click OK.
- On the File menu, click Exit to quit the Group Policy snap-in.