Vue 8 runs in 64 bit mode with my nvida SLI setup and utilizes all cores and ram.  Haven't found any
limitations yet.  In win7 you have to prevent the box from sleeping and I've done much higher resolution renders than I could do with Vue 7 Inf.  a typical render on my machine is normally
3200 x 2400 and i've done as high as 6400 x 4800.  The next setup I want to try is creating a HDRI
with the usual spherical camera on a render which they say vue can do.

I've also added some ancient usb microscope which uses xp drivers and it installed and functions
just like it should.  Win 7 Ultimate works fine for me