How do you enforce an expiration date independent of System Time?

[dalchri]

I am developing some licensing for our software and I was wondering, how does WPA enforce the three day expiration within which you must activate windows if you can always mess around with the BIOS clock or even the windows time?

How can I count down days?

 

[chiph]

I don't know for sure, but I suspect that WPA gets it's date info from the WPA servers and doesn't rely on the local clock.

Chip H.


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