I am creating a web application. I would like to create a product key for
the app that expires after a full year of usage. Any suggestions?
Thanks,
Mark
This should give you some ideas.
http://www.thecodeproject.com/dotnet/xmldsiglic.asp
If you have other ideas or questions after reading, please post back.

Signature
William Stacey, MVP
http://mvp.support.microsoft.com
> I am creating a web application. I would like to create a product key for
> the app that expires after a full year of usage. Any suggestions?
>
> Thanks,
> Mark