A Possible Simple solution
Believe it or not, there is a very simple workaround to stop Windows Messenger popping up the upgrade or quit message which seems to work quite often. This is perhaps more suited to early versions of Messenger because on WLM 2012 and 2011 it can cause a few graphical glitches, but on 2009 and below it seems to work OK.
The answer is simply to change the compatibility mode for Messenger to Windows 2000 and rather oddly it won’t ask to upgrade. This could be related to the fact that Skype does not officially support Windows 2000, so doesn’t ask to install it. To enable Windows 2000 compatibility, right click on the Messenger desktop icon, click Properties and go to the Compatibility tab. Check the “Run this program in compatibility mode for:” and select Windows 2000 from the drop down menu.
The Automatic Solution
If you want the Messenger client you’re running to just work and don’t fancy editing files yourself, there is another solution to the problem. Jonathan Kay the author of the useful tool ZapMessenger which helps remove stubborn versions of Windows Messenger 2009 and below, has produced another tool that makes it easy to get back your Messenger if you have installed Skype, which will remove WLM by default.
Messenger Reviver 2 is a simple to use but effective tool that’s also a portable executable. In addition to reviving your WLM if it’s been removed by Skype (by performing a repair on Windows Live), the program can also download and install versions 2009 or 2012 of Live Messenger, also silently in the background if you wish.
Messenger Reviver patches the WLM executable or DLL files in a similar way to our manual method on the first page and also creates a backup in case there’s a problem. The main window will differ slightly depending on what you already have installed. If you have no WLM, it will offer to download and install 2009 or 2012. If you have Skype installed which has disabled Messenger, Reviver will offer to repair the Live install to bring it back. And lastly, if you have the standard untouched WLM, Messenger Reviver offers to patch it and remove the forced upgrade or nag windows.
Messenger Reviver 2 is a handy little tool to try and keep your Messenger running as long as possible, and it’s worth checking the website quite often because the tool has only been out a few days at the time of writing and already there’s been four updates for it. It works on Windows XP or above and requires the .NET Framework 2 to run.