Such dedicated VST and DXi versions guarantee low latency during transmission of MIDI data between the computer and the keyboard, avoiding undesirable note delays while playing.
In particular, both the VST and DXi versions allow you to play the entire Virtual Sound Canvas collection of sounds in real time from your controller keyboard while playing/recording through compatible software, such as Cubase VST or Cakewalk SONAR. The VSC-MP1 package offers the Virtual Sound Canvas software synthesiser available in 3 compatible formats, VST instrument, Direct X instrument (DXi) and stand-alone application (driver version).