Somebody mentioned that the Vray 1.45 beta would work with MAX7, apart from there was a problem with the licence protection.
The great news is that I haven’t been able to find a problem with it, it all seems to work fine here 
Yes, the shipping version of max 7 works fine. There was something in the max 7 pre-release that Chaos had that didn’t work properly with VRay, but it seems discreet changed it for the shipping version 
yog test if you can net render vrmap with max 7. Cause I can’t save vrmap when network rendering. I’m using vray 1.09.03r