I managed to solve the problem.... I downloaded GeForce 340.52 driver from Nvidia site, extracted the entire package, and then expanded the file nvEncodeAPI.dl_ --> nvEncodeAPI.dll I copied this to windows system32 directory, replacing the old one that was there. New file has size 408KB (old one was...

I'm using older GeForce driver (332.21), as such don't have NVEnc. What files are specifically required to enable this functionality? I gather it is nvenc.dll or some such. My video card is GTX780Ti but I'm reluctant to upgrade to latest GeForce drivers due to the lack of CUDA which I use a lot, als...