E-MU Proteus X is a Virtual Sound Module produced by E-MU Systems that is a software-based audio sample-based synthesis product that includes the complete library soundest of the popular and legacy Proteus 2000 MIDI Module, as well as additional sounds/samples.
Only Emulator X3 is tested and officially supported for both XP & Vista and is the only version that works as a VSTi in x64 and DAW software.
All versions of the Proteus X Software Sound Module can operate as a stand-alone program with 64-MIDI channels or as a VST instrument with 16-MIDI channels.
Not having all of these things in order often results in the failed launch of the program or the Streaming engine error message.
This article relating to electronic musical instruments is a stub.