Secure Software Registration System / Shareware

I'm looking to have a project created in C++/ASP/SQL that will require a user of my software to register and pay for the product then enter in a serial number / user name / password to run the product. This application should have 2 parts. 1) Web Based Database (SQL) / with online registration (ASP). - Sign up Page, for trial serial number (15 day Trial) - The system should automatically disable accounts when the 15 day becomes due. - Sign up Page, for paid serial number - When paying for the application it must be processed via paypal's IPN - User Page, where he can modify his account information / upgrade to a full version. - After a sign up is complete, the user should receive a confirmation email. 2) C++ Module / Form - Create a form that will check a username / password / serial combination against a web database. If it's verified allow the application to open. - This form must be created in C++. - It should contain Username / Password / Serial / Verify button. - When these values are entered and verify is pressed they should store to a local [login to view URL] in the [login to view URL] directory. - It must also check to see if the user is already connected. If he is return a message saying that he is already connected. - If the user logs on, record his IP in the database. - Only allow 1 concurrent user by serial number to use the program at a given time. - This form should also check the internet every 2 hours to see if the username / password / serial are still valid. If the application cannot connect within 3 days the program should be disabled until it re-connects. (Just a fail safe if the program is left open) -If the program is running in trial mode it should warn of the amount of days left. (This should not use the system clock but the time stored in the DB) The purpose of the system is to provide software for sale but verify their serial number / username /password every time they log in. The database must also allow for a flag to say the account is de-activated. This must be a secure system, so that the program is not cracked. More information can be provided upon request. I would like this completed as soon as possible. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Installation package that will install the software (in ready-to-run condition) on the platform(s) specified in this bid request. 3) Exclusive and complete copyrights to all work purchased. (No GPL, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site). ## Platform C++ / ASP / SQL / Windows2000 / Windows XP