I have some old programs that I'd like to install in may XP pro computer.  How do you register a program in the Registry or is there a utility that will do it?

Thanks...

   Every program registers itself differently in the registry.  The only way to register a program in the registry is to install it (you do this by running that program's installation program).
   Some programs do not have to be registered in the registry to run.  Some programs do not even use the registry.  In these cases, the registry is not needed for them.  Other programs that use the registry will write their information in the registry automatically without you doing anything.
   So if the program works without registering it in the registry, don't mess with it.  Let it be.