HyperSpin - HyperSpin is an animated arcade frontend for Windows for use on Home Arcade Machines.
FCEUX - FCEUX is a Nintendo Entertainment System (NES), Famicom, and Famicom Disk System (FDS) emulator.
LaunchBox - LaunchBox is a portable, box-art-based games database and launcher for DOSBox, emulators, arcade cabinets, and PC Games. Download it free!
Nestopia - A portable and cycle-accurate NES emulator written in C++
OfflineList - A widely-used, multi-platform ROM manager.
RetroArch - RetroArch is a frontend for emulators, game engines and media players.