By the way, I'm using Visual Studio 2012.
I also tried recompiling sfml, csfml, and sfml.net from the latest sources, the error still persists. Weird though - all the samples work, though the error still shows up.
Also debugged the source last night, a WindowImplWin32 object was only created when the program quits. Is this correct behavior?
I'm going to try modifying the RC in order to get the features I want, nothing else. If this fails, then maybe its because of VS2012 and not SFML.