dot net - how to create keygen using program's code

This is a two fold question. I have a program that uses a hardware ID fingerprint, and then checks against a serial#. I was successful using NET Reflector with Deblector to discover the correct serial#.

However, it would be a real pain to load Reflector on every PC and then manually see the correct serial#. Would have to set bp manually as well 1st time around.

Is there a utility that could run independently that could monitor the serial? Or is there an easy way to copy the contents of the program to create a keygen?

Program finally uses: mscorlib -> System -> String -> Base Types -> op_Equality(String, String) : Boolean

TIA