@james, thanks for The links ... They confirmed what I know ...
In my case the only catch, is I will have to switch virtual serial port software as the 64bit version is not free due to licensing the driver ...
Thanks guys for all the feedback now I know what I need to make the decision ....
P.S. My machine has 2.5GB RAM (that I can boost to 4GB, from old laptop)
SSD Drive, that makes memory paging not a big slow down ...
It is dedicated to VC, KODI, Insteon software, Hopefully with mem boost, it will be able to handle iSpy to give VC some eyes