implementing licensing in .net winform app.

Question

How can i implement licensing application like 30 day trial free

Answer 1

There are several ways to do this. Most come down to two options:

1) Service That Handles Keys, Payments, Provisioning

2) Product

Here are solutions:

Microsoft Software Licensing and Protection Services: http://www.microsoft.com/slps/ http://en.wikipedia.org/wiki/Microsoft_Software_Licensing_and_Protection_Services

Infralution Licensing System: http://www.infralution.com/licensing.html

InstallShield: http://www.flexerasoftware.com/products/installshield.htm