FxSound - Clearer Sound for Your PC. The new FxSound boosts your sound quality, volume, clarity and bass.
Ruffle - An open source Flash player
Boom 3D - Audio enhancer with 3D surround sound
SuperNova Player - SuperNova Player allows systems to play .SWF files in a standalone player launched from any browser.
Equalizer APO - A system-wide equalizer for Windows 7 / 8 / 8.1 / 10 with channel remapping/copying capabilities
Lightspark - The Lightspark project