HX allows running Win32 apps in DOS, but they can't be debugged. Is there some way to do it? For example some integration with DOSBox? Or it can be done via DOS tools only, such as WD? Unfortunately TD32 isn't supported by HX and 32rtm doesn't allow DOS extender things, like accessing video memory - it's more like pure Win32 console emulator. And I'm isn't familiar to WD. Latest version doesn't work with HX, so some old one should be used.