Application error when trying hacks

Ok so everytime i try Hack for combat arms i always get an error that says applicaton error...etc. this always happens when i push the hack .exe its weird so i would like some help...havnt gotten any hax for combat arms yet because this keeps on happenning....I've played crossfire for like a year and their hax rule but i come to CA for the better quality and beter weapons..

look up .NET framework.