Until you buy 2 more licenses, it can be use 0 - that's zero more times.
You are only allowed to install all Windows, 1 per license, as it has always
been, just now WinXP has the means to enforce it, as you'll not be able to
activate the 2nd and 3rd installs without a different and unique 25-digit
installation key, proof you have bought a license.
