Default Audio uses an undocumented API introduced in Windows Vista to change the default audio device on the system. Many applications just default to using the system default audio device and will change their output to that device automatically on the fly. Useful for gamers, streamers who want to be able to trigger this action through a macro key without interfering with their game or other on-screen application.
The installer is very minimal. Just run the installer, it will request administrative privileges, install the visual studio c++ runtime if necessary and then install a tiny executable (16 kilobytes, that is 64 times smaller than a megabyte). It will then be added to your system path, so any newly launched CMD prompt, PowerShell script/prompt or Windows run boxes will be able to run it by just entering the defaultaudio command.
It is packaged using MSI packaging and can be deployed with Active Directory if need be.
Windows Server 2016
Windows Server 2008