Is There A Way TO Make People Activate My Software Before They Use It?

Question

I Made A Little Piece Of Software In Visual Basic And I Want People To Activate It Before They use It. The Activation Will Require A Activation Code Not One Where They Just Click Activate But They Have To Know The Code To Activate it. Please Also Post The Code Of It. I Want The Activation Box To Pop-Up And Make people To Activate It. If They Don't Activate It The Program Automatically Closes. Thanks In Advance.

Answer 1

What language and development environment are you working in? I can't provide any useful code without knowing this.

The most basic way of implementing an activation feature into your program would be to simply store a code in a string, and check the code that the user enters against it. If they are the same, the user has activated the software.

More complex systems will use application MD5, or compare the code that has been input with codes that are stored online in text files or in databases.

Answer 2

MD5