Server 2012r2 ConnectX2 OpenSM

I have a MNPH29D in three machines two of which are running server 2012 r2. I tried to create the OpenSM server using the powershell command

" New-Service –Name "OpenSM" –BinaryPathName "`"C:\Program Files\Mellanox\MLNX_VPI\IB\Tools\opensm.exe`" --service -L 128" -DisplayName "OpenSM" –Description "OpenSM" -StartupType Automatic

Start-Service OpenSM "

Only for it to not start. I read somewhere that OpenSM doesn't work on 2012r2, is there any conformation on that?