I'm building a C# application and would like to sell it for an audience. I would like to upload a database file into a website I own and give serial numbers to be verified first with this database file, once the database store the given serial and the first registered PC then it blocks this serial for other users.
Can anybody guide me on how to make such step during installation time? how I can connect to a remote database on a website to read and write?
Thank you for your time, really appreciate it.
If i understand you, this is what your looking for.
Using that you should be able to check a serial against the database.
One way to block the serials for repeated use is to couple a boolean "used" with a serial on each row. Then you can check both if the serial is found in the database, and if the boolean value is false.
Make sure to keep the input safe to prevent SQL injection.