WINDOWS MESSENGER 5.0 REMOVAL This is a guide to designed to remove Windows Messenger 5.0, not for the version that comes with Windows XP (4.7). 5.0 is available as a upgrade at the Windows Update website. - click start, run.. - type in without quotes "msiexec.exe /x {ABEB838C-A1A7-4C5D-B7E1-8B4314B10138}" - click ok - you will be prompted to remove windows messenger, click yes. Windows Messenger should now be removed from your system.