The program attempts to open itself - if that fails it adds ".exe" and tries again, so you shouldn't need to do it yourself. This works for Win95 which is the system I'm compiling / testing on. Perhaps the value passed in argv[0] is slightly different on Win2K.

Tan Bandradi - please confirm that using the full executable name "kixcrypt.exe" works for you, and I'll try to dig up a W2K box to play with.

Thanks Shawn, KST for helping debug this.