I tried it but the result is the same. I also realized that the crash is somewhat random (sometimes it works the way it should) edit: I changed something and it seems to work now
...just in case: This is how I'm supposed to do it, right?
HMODULE HAckPxtn = LoadLibrary("dll\AckPxtn.dll"); // the forum code-box deletes the double backslash o.O
_Pxtn_CreateInstance = GetProcAddress(HAckPxtn, "_Pxtn_CreateInstance");
etc...