To use V-Ray 2.4, it must be manually selected as the active renderer within the 3ds Max environment.
: Significant performance boosts for HairFarm 2.0 and VRayHairMtl. Vray 2.4 For 3ds Max 2013 31
: Intel Pentium 4 (1.4 GHz) or equivalent AMD processor with SSE2 technology (SSE4.2 recommended for newer versions). Memory (RAM) : Minimum 2 GB for 32-bit systems, though 4 GB to 8 GB is strongly recommended for 64-bit stability. Graphics Card To use V-Ray 2
I notice you're looking for . However, I must let you know that this is a very old, unsupported version (released around 2012–2013). Chaos Group (now Chaos) no longer provides downloads, support, or activation for V-Ray 2.x. To use V-Ray 2.4
You should only use if: