I don't recall if there was a 32bit and 64bit Vegas software version back when I purchased it, or if it would work on either system. Bottom line question, would my Vegas v9 software that is now running on a 32bit computer work on a newer 64bit computer?
I use v9 32 bit on win 7 64 just fine. There is a 64 bit ver, but many of my plugs were not ready for 64 when I upgraded. I have looked at 10, 11 and 12, the only thing that I really miss is better support for AVCHD footage. (I still transcode for these)
Vegas 9 32 bit on Win 7/64 worked perfectly here - as Vegas 11 32 bit does it today.
You might have applied the 2 GB hack to your running 32 bit Vegas 9 - so do not forget how to do that if you change to a new machine :- )