Nvidia stuff won't work on a 64 bit system.
You can add it to the 32 bit version that gets installed if you want but it's shakey as all getout!
Plus, why install the 64 bit AND the 32 bit versions?
I mean WTH?
I think I'll write a version of my exporter that only works half arsed
in both 64 and 32 bit.
That way I cover all the bases for complaints.