If you have observed and compared closely how Windows Live Messenger behaves in Windows Vista and Windows 7 then you must have figured out that in Windows 7, the Live Messenger does not minimize to tray. Quite annoyingly, it just sits in the Super Bar of Windows 7 which looks absurd. Here is a quick little trick to make Windows Live Messenger behave exactly as it used to in Windows Vista. Many of you must have already got the hint. Yes, the compatibility mode.
To always minimize Windows Live Messenger in system tray in Windows 7, here’s a quick workaround:
1) Click 
to open the ‘Start menu’ and in the search box, type ‘msnmsgr.exe’. The start menu will fetch it. Right click ‘msnmsgr.exe’ and choose ‘Properties’.
2) Click the ‘Compatibility’ tab, change the compatibility mode to ‘Windows Vista’. Click OK and you are done.
