title: How to write to WIN registry to assign values to right button?
body: <p>I hope you understand me.
  I have little MD5 Check Sum app, and I want if i click on some file in the entire Windows OS, with right button, in the context menu there to be a button "Check MD5 Sum". Like when you install WinRar, the app assign values there for archive, and extracting. Thank you!
  I'm Working in VB.NET</p>