I think I know the answer (no), but I'll ask anyway.
I've invested a good bit of time learning Capture NX2 and am reasonably satisfied with the results working on .NEF files from my Nikon bodies.
I just bought a Sony DSC-RX100 because of its size and advanced sensor to use when I don't want to carry the larger cameras. I'd love to be able to process Sony's .ARW RAW files in CNX2. Naturally, .ARW is a proprietary format, which won't open in NX. My work-around so far is to process the .ARW files in Image Data Converter v.4, free software from Sony, convert to JPG, then do final tweaking in Capture.
Results are fine, but I'd like to find a way to convert the .ARW files to a RAW format that Capture can deal with and process them there. Not a big deal, but I'd rather not have to use two different programs.