Edgar,
this depend on the level of security you need.
A good solution for demos and copy protection (it even can turn a demo into a paid version or make a paid version available as demo for somebody else) is Protection Plus (
http://www.softwarekey.com/swk_products/plus/default.asp).
Agnes
>Hello, i need to give the demo of a program i made but i want that after 2 months doesn't work or allow to work, how can i do this?
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Weeks of programming can save you hours of planning.
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