Finally I've restored dev environment for qt web kit and built BBR binaries for windows.
As some of oldest community members can remember, at the end of 2014 there was an idea to redesign GUI, we started with Bitcrea and there was even a guy who was making html work for it, but from what I see now I it's in some "intermediate" condition, so Ive brought back original GUI html.
Ive tested it on few versions of windows and it worked fine except clean win 7 boot with no service packs installed, the reason is unknown to me yet so please make sure you have at least sp1.