I'm an open source programmer and wiki editor and my username on both SourceForge and Wikipedia is Yetisyny just like here. The main thing I program is actually a roguelike game called "Liberal Crime Squad", you can look that up online if you want, I'm one of several developers on it, not the lead developer or anything.
I've compiled the new (as of December 2015) NetHack 3.6.0 to work on older versions of Windows and older CPUs and it's available at https://www.sendspace.com/file/23ir4k. It should work on anything as old as a 386 CPU and on any Windows version back to Windows 98 or Windows NT 4.0. For more information see the forum thread about it here where I also discuss stuff like the options and process I used to build it so other people can reproduce those steps themselves if they want. The download link was created on December 16, 2015 and expires after 30 days so that means it'll expire some time around January 14 or 15, 2016. Hopefully someone can find a better place to host that download before then, for people using older versions of Windows or using older CPUs. Personally I needed this because my main computer doesn't support the SSE2 instruction set which the official NetHack 3.6.0 Windows binary currently requires (although maybe they will fix this soon), and so I compiled a version that doesn't require it so that I can play NetHack 3.6.0. I hope other people enjoy it too. Since it works in Windows 98, and you can run Windows 98 from the DOSBox emulator, this means you can run my version of NetHack 3.6.0 inside the DOSBox emulator, on any operating system that supports DOSBox. So that is neat.