add: catMan.addCategoryEntry("command-line-handler", "@mozilla.org/newsblog-feed-downloader/clh;1", true); 
context:   unregisterSelf: function(aCompMgr, aFileSpec, aLocation)  {    aCompMgr = aCompMgr.QueryInterface(Components.interfaces.nsIComponentRegistrar);    for (var key in this.mObjects)     {      var obj = this.mObjects[key];      aCompMgr.unregisterFactoryLocation(obj.CID, aFileSpec);    }    // unregister the account manager extension    catman = Components.classes["@mozilla.org/categorymanager;1"].getService(Components.interfaces.nsICategoryManager);    catman.deleteCategoryEntry("mailnews-accountmanager-extensions",                               "@mozilla.org/accountmanager/extension;1?name=newsblog", true);  },
meta: 5459	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5459/5325e72c91fb76080e2e20c909d7321b934dacae/newsblog.js/buggy/mail/extensions/newsblog/js/newsblog.js