Missing Mental Ray Plug-In
 

I'm using an older version of Maya.... 2013. I've installed this version before and was able to enable the Mayatomr plug-in but my new install does not have this. Does anyone have this plug-in that could send it to me? I scoured the net last night looking for it but didn't find anything.

I'm aware of having to enable the plug-in maya, it's that this plug-in is nowhere to be found.