rem: if(iid.equals(Components.interfaces.nsIMsgDBViewCommandUpdater)) return this; 
add: if (iid.equals(Components.interfaces.nsIMsgDBViewCommandUpdater) || iid.equals(Components.interfaces.nsISupports)) return this; 
context:   QueryInterface : function(iid)  {    if(iid.equals(Components.interfaces.nsIMsgDBViewCommandUpdater))	    return this;	      throw Components.results.NS_NOINTERFACE;    return null;  }
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/380b2ab5109dad6f8ae8cc17889ceb7a1baf6c58/messageWindow.js/clean/mailnews/base/resources/content/messageWindow.js