Trial versions

Hello.

I'm trying to make a program like Trial-Reset to delete trial keys of various software.
I'd like to know if other softwares do so, and their names in case they exist, to read documentation about theem.

If there's any guide about the issue I'd also like to know where to find it.

Thanks

[copyleft]

CrackLock, DateCracker, EVACleaner, and maybe more
but the best is TrialReset, VB Source code is available for study,
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