nickthat

I should point out a small bug in your code. if( argc < 2 ) { printf("\nUsage: acrh <filename>\n"); }You need a return statement in the "if" block. probably returning a non zero error value which is the standard way of doing it in C.

Making direct calls to the Windows API functions shouldn't be neccessary. It would be easier, especially if you are new to C++ to use some classes that encapsulate the Windows API. These generally are less verbose as they require less parameters and will get you up and running quicker.

A quick google search for such classes yields the following. I can't vouch for it but codeproject.com generally has good free code on it.

http://www.codeproject.com/Articles/21453/Class-to-handle-the-Windows-Registry-operations