virtualbox.org

I have searched and read the user manual but I want to make sure about this so:

Is Vista 64-bit the only Windows based 64-bit HOST OS supported? I have an Intel Q9550 and had hoped to use W2K3 64-bit as the HOST OS.

If W2K3 64-bit isn't supported now, is anything in the works to support this as a HOST OS in the near future?

Last but not least, if I have to resort to Vista 64-bit as the HOST OS, would you consider this a relatively stable and reliable solution?

Thanks,
Ray

there is no reason that I'm aware of that it won't work. Vista 64 is just the most common one.

I know a few people have used it on XP 64-bit

I am new to this application but though I would let you know that I am currently running this on XP x64 Edition and it runs very smoothly and quickly