Possible Duplicate:
Can you help me with my software licensing question?
We've got volume license for xp professional upgrade. My predecessor thought that was enough to be compliant.
We can't buy xp anymore, but can 7 serve as basis for the volume license?
Another question: Do we, for compliance, have to physically install windows first (retail license/copy), and then remove it and then install the volume license upgrade? Or is it enough to buy (and keep) enough copies of the retail version?