VirtualMIDISynth is a MP3 & Audio software developed by CoolSoft. After our trial and test, the software is proved to be official, secure and free. Here is the official description for VirtualMIDISynth:

MarydownEditor: VirtualMIDISynth is a software MIDI synthesizer implemented as a Windows Multimedia user driver, accessible as a standard MIDI Out device.

Features:

*User mode multimedia driver, no reboots, no BSOD
*Directly accessible as MIDI Out device, no need for MIDI virtual cables (like MIDI Yoke, LoopBe1)
*MIDI mixer to set track mute/volume, accessible through SysTray Icon while playing
*Compact size (setup is ~300 KBytes)
*No DLL cluttering, everything is contained in System32 subfolder
*Clean installer, won't affect other MIDI devices
*Efficient RAM usage (allows using large SoundFonts, > 1GByte)
*Virtually unlimited polyphony (limited only by CPU)

v.1.6.3
- NEW: German language (thanks to Markus Stein)
*Load up to 10 SoundFonts and chain them