Unless you know how to unpack it, its not going to be as simple as hex editing it. ASPprotect I think has it compacted so you can't hack it directly. You need to unpack it first and then use Disassebly or hex to remove it.
I don't know much about it but thats it in a nutshell.
you can still try with hex edit...use your intellingence....open the no GG one with the hex editor...and the not no GG one....look at the GameGuard part...and see the difference