I found the solution to this over on stackoverflow in this discusstion. I think it may be worth sharing this ‘fix’ as I’m sure that other applications that behave strangely have the same issue. See how the application preview doesn’t render anything at all? This is the hint that it’s broken. The fix is to disable Desktop Compositing & Desktop Themes, but the application comparability tab is hidden on many applications for Windows 10. It turns out that this has been an ongoing issue with Windows 8 (maybe Vista/7?) with Aero rendering of all things. The first thing is that if I search through the source code base, the application locks up, hard. While building the latest DOSBox SVN using Visual Studio 2003 I found something kind of annoying under Windows 10.
