Originally posted by: jliechty
Originally posted by: josphII
Originally posted by: LeeTJ
Originally posted by: Lord Evermore
Each CD is identical, you can use any valid CD key with it. Setup only checks whether a key is valid based on an algorithm, it doesn't compare your typed-in key to anything on the disc itself.
that hasn't been my experience. i bought 6 copies of XP Pro for a client. I have to keep each Product ID w/ it's respective CD otherwise it won't install.
Your mistaken
The only way he could be right is if some of the CDs were retail fullversion, and some were retail upgrade, and some were OEM, or something like that. As others explained, the CD key must be matched with a CD of its "class" to work properly.