O.K. I have this great (at least I think so) application and I'm ready to package it for distribution. But I need to build-in a way to ensure it doesn't get bootlegged and I would like to have a demo version (i.e. 30 trial version) that would stop working after a set time frame.

If I require some install key, won't I need to hard code a unique number and re-compile each individual exe ? And how do I restrict a time without the user just resetting the system date and bypassing?

Any Suggestions?

Thanks,
Greg Taylor