Reply to Message

You should buy a server class machine. You should be able to find one for less than $1,000 to do active directory. Find a reputable brick and mortar based software distributor. Microsoft offers excellent education pricing, but it is confusing. A good reseller can find the best fit for you.

Wind 7 has features XP does not. You may need to have a separate group policy for the windows 7 machines. But it can be done and works well.