public void InitVsaEngine(string rootMoniker, IVsaSite site){
this.genStartupClass = false;
this.engineMoniker = rootMoniker;
this.engineSite = site;
this.isEngineInitialized = true;
this.rootNamespace = "JScript.DefaultNamespace";
this.isEngineDirty = true;
this.isEngineCompiled = false;
}