Security Validation Script for Program

I am looking to have a program verification system completed. This system will be built into an installable application and will verify the users usage in a maintained database. Users will enter their Name, and Email into a web form after payment and this will automatically be entered into the database to allow usage of the installed application. The database will maintain the users information and will either give them access to continue using the installed application, or will deny them and not allow them to continue using the application. The administrator will be able to deny access when desired. The verification should be based on their name, email, and unique computer hardware id. There are many other small details including an admin area where the users can be given and denied access. All can be web based and will be maintaining a live database that is connected to verify usage. Post bids and I will send more details based on your comments.