Hello, I'm writing a program and now trying to find a way to check to see if a Windows XP CD-Key is valid. Obviously the algorithm is not known, but is there an API call in Windows that could do this ...

It has never been too hard for someone with the right amount of time, desperation, or flexible scruples to get around Windows XP’s activation scheme. And yet XP activation, the actual encrypted ...

The product activation algorithm was cracked “some time ago," The Register says, and in 2019 an open-source key generator was released that allowed for the printing of “endless Windows XP keys.” Last ...