Here's a site that shows you how to read the MSoft Product ID to determine what OS you have.

http://wiki.djlizard.net/Product_IDs?pagen...ct-id&page=

Commandline command to get the product ID.

reg query "hklm\software\microsoft\windows nt\currentversion" /v ProductID

Edited June 25, 200719 yr by mikesw

Here's another site for the product ID labels for other lanaguages besides English for XP SP2. Moreover, there

are links on this webpage to the earlier service pack release naming conventions.

http://www.tacktech.com/display.cfm?ttid=342

And here's the Windows 2000 ones.

http://www.tacktech.com/display.cfm?ttid=269