However, there exists an unofficial Windows SDL (32-bit) port of the emulator that can be downloaded from here, but there are some differences though:
It's developed for the GameCube and Wii (as homebrew) and is only available on other platforms using the libretro core. Genesis Plus GX is a proprietary Sega SG-1000, Master System, Game Gear, Genesis/Mega Drive and Sega/Mega CD emulator developed by eke-eke.