I am trying to compile PAssThru in cbuilder folder.
Hmm, I would start Borland C++ Builder, select File->Open Project, browse to PassThru.bpr and open it. After this I would click Project->Build PassThru.
it gives me many unrsolved external sybol errors. I understand that these are caused by the linker and I probably have to link it with ndisapi.dll, but I dont know how to do this.
Actually, you have to link to ndisapi.lib (stub library for ndisapi.dll).