This crackme is written by TDC and is an excellent Remove the Nag challenge.

Objectives:

1. Remove the starting Nag Screen
2. When the button Re-Check is clicked, a pop-up messagebox appears and you should set it to say “Thank you for registering this software”
3. Set the Status box text to: “Clean crack! Good Job!”

Download Target.zip here (password to unzip file: crackinglessons.com)