hi every body ,
i worstly need the method to create secure set up file in vb.net .
secure means that i want to create exe file for specific time mean that for one month or two and then it expires. Or it installs on one pc and not on other pc. and also how to include Key in set up file and how this key will be set .
plz i m waiting for ur kind response. Very necessary..........

You should use registry. Or you can use a license file. And check every start the license file, or registry.