title: Domain Based C# Licensing
body: <p>I have build a control in c# that users can download and use in their websites. I will be charging for this control, and want the ability to create a license key that only works for specific domains (the domain the control is used on).</p>
  
  <p>I've looked at Rhino Licensing by ayende - but it was lacking any information on how to include it into my own project.</p>
  
  <p>I'm looking for one of the following - a detailed tutorial for handling domain based licensing in c# or suggestions on specific free solutions.</p>