I'm looking to build a cluster of test machines that run XP, Vista and Win7 with 32/64 bit versions but I'd like to build these into a cloud system.
Looking at EC2 I can't install XP and I can't see any others that provide this.
So, does anyone know of an on-demand cloud platform that works like EC2 (per instance billing and on demand) but that would allow me to install custom operating system configurations?
Yes, I know that XP will be insecure etc and this is probably why Amazon don't want to touch it, but for my purposes I need large quantity of machines that represent real world scenarios. Hence XP, Vista and 7.