I'm a new user so this may be a silly question...

I have just bought BiaB and found out that the Roland VSC Dxi won't work with my Windows 7 64-bit. However if I only plan to use RealTracks anyway (they're supposed to be better) then I wouldn't need DXi anyway, as RealTracks doesn't need/use Dxi?

I know that I can buy the Forte DXi but I'm thinking I probably wouldn't need it anyway.