SKWin SPX
SKWin (also known as DM2 SKSave Converter) is a project initiated by Kentaro.SKWin brings a PC-9821 Dungeon Master 2 port for Windows system.
Kentaro described the project here.

I have been able to modify and add some features for experimentation and expand DM2 capabilities. The version is playable and can even use PC DM2 savegames.
Kentaro and I are still working on the project and you can access this archive of SKWin SPX.