Crossfire problem "Client MFC Application doesn't work"

When I start Crossfire I get the error Client MFC Application doesn't work. I uninstalled the game 3 times an I have the setup.exe from 3 diffrent homepages, but I get the error every time. Before 2 month the game worked well.
Sorry for my bad English, but I'm from Germany
My System is:
Windows 7 (64 bit)
Nvidia Geforce M310
Intel Core i7
Kaspersky Security Suit