Before install RayFire Tool 1.5 please read this carefully.
RayFire Tool 1.5 supports new Nvidia PhysX plugin 2.0 for 3ds Max but doesn't provide it. To use PhysX support via RayFire You need to get it and install manually from Nvidia developers zone since Nvidia doesn't allow any kind of distribution of their plugin.
Here You can get PhysX plugin 2.0
http://developer.nvidia.com/forums/index.php?s=566469e17f33bdee788d55baf569fb1a&showtopic=3990&st=0&start=0.
If you will have problems with getting new PhysX plugin, please email me and I will try to help you.
New PhysX plugin supports only Max 2008, Max 2009 and Max 2010.
Older RayFire Tool 1.46 contains all PhysX engine files inside it's installer, but it supports older Nvidia PhysX plugin version which doesn't support 64 bit 3ds Max.
