HelpClient MFC Application Has Stopped Working

Hey guys! Everytime I try to open crossfire it says my "Client MFC Application Has Stopped Working" here is the full info:
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Problem signature:
Problem Event Name: BEX
Application Name: crossfire.exe
Application Version: 1.1.45.8
Application Timestamp: 563b1baf
Fault Module Name: msvcrt.dll
Fault Module Version: 7.0.7600.16385
Fault Module Timestamp: 4a5bda6f
Exception Offset: 00023e64
Exception Code: c0000409
Exception Data: 00000000
OS Version: 6.1.7601.2.1.0.256.1
Locale ID: 1033
Additional Information 1: 7b5d
Additional Information 2: 7b5d96449c862b5badbe7f0b5913cff2
Additional Information 3: e67b
Additional Information 4: e67b61108d25e75fbeb3483c4016d346
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I already added it on the "Turn on DEP" stuff in the performance settings but still nothing. Crossfire worked last night but today crossfire won't open again I really need your help I waited so long to download it

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P.S. I don't have any hacks so that's probably not the reason

Uninstall the game, delete any remaining folder/file if there lasts, then reinstall it. Have your computer experienced an overflow error, a blue screen, a physical hit, or something like that?