Windows Script Host (WSH) is a Windows administration tool. You can use PInvoke to activate it from C#. Recognizes an MS specific (and old) version of JavaScript.
WSH creates an environment for hosting scripts. That is, when a script arrives at your computer, WSH plays the part of the host — it makes objects and services available for the script and provides a set of guidelines within which the script is executed. Among other things, Windows Script Host manages security and invokes the appropriate script engine.