Hi all, I can't get Rewire to work with Platinum. I've installed the latest propellerhead Rewire 1.7 64 bit. I use Waves Tune and it need rewire to work. Waves also installed Waves Rewire. Waves rewire shows up, along with Melodyne, and Ableton Live 9 in the Rewire browser but will not load. I've asked Sonar, no response, asked Waves, no answer. 
 
WiLLi & MMX3PT
 
The MMX3PT - Platinum, Win 7-64 Pro,  29" & 21" monitors, AMD Quad 3.6Gb, 16Gb x 1600 buss, Gigabyte UD3 Motherboard, 3.1Tb storage, MUTO Express 128 MIDI, 8 Midi controllers - including a Roland SH-201 Synth, Oxygen 88, 2 -16 touch pads, Scarlett 18i20 audio - 10 speaker monitoring system - 5.1 surround, Dual headphones 1 wireless, 6 mic's 1 wireless system and a Numark DJ - TT200.  Too many VST's to list, excess of 500 and includes: Players: Sonar; Collection from 8 Studio~Platinum, BFD 3 with 70 kits over 1700 pieces, SampleTank 3 - 20,000 sounds, Rapture Pro - 10,000 sounds, Zeta2 - 5,400 sounds, Bass Station, NI-Infinte; Ricky 4003, GPO, Bonham Drums, etc.  Processors: Sonar; collection from 8 Studio ~ Platinum,  Waves; 48 VST3's, Nomad; Studio III & Magma, IK-CS;  Ampitube 3 with All packs - extra gear & 20 processors, Scarlett - Red 3, a few deluxe ones.

Search on the DLL. I had something similar happen when the 64-bit DLL was introduced. Turns out there were four or five ReWire DLLs scattered over my C: drive. I deleted all but the latest one and all was well. Can't guarantee this is the solution for you, but it was for me.

Thanks Craig, same worked for me. Found some old ones back from 2011 in System32 folder. Deleted all but Waves 64 bit, as 32 bit was also installed, in a waves directory. Copy the waves rewire x64 folder to the Sonar Plugins folder and all is working fine. 2 for 2 sounds like a fix.
 
 
WiLLi & MMX3PT