Any ways to fix this problem, I didn't see any things about this in the common fix's post.

 

Any help?

http://i1170.photobucket.com/albums/r52 ... /error.jpg

 

Here is the link to the picture.

Install the .NET Framework (3.5).

XP is not supported at the moment. But, you can make a file in your MW2 folder names 'iw4m.ini' and open it with notepad. And on the first line should be your username, and on the second your password. Then save it and launch the game. Should work without any credui.dll errors.

Also,

 

Install the .NET Framework (3.5).

Thank you guys worked for me, now I'm going to start the game up