*IBM developerWorks - XPCOM Overview [http://www-128.ibm.com/developerworks/webservices/library/co-xpcom.html part 1] [http://www-128.ibm.com/developerworks/webservices/library/co-xpcom2.html part 2] [http://www-128.ibm.com/developerworks/webservices/library/co-xpcom3.html part 3] [http://www-128.ibm.com/developerworks/webservices/library/co-xpcom4/index.html part 4] [http://www-128.ibm.com/developerworks/webservices/library/co-xpcom5.html part 5]*[http://www.mozilla.org/scriptable/xpidl/idl-authors-guide/index.html IDL Author's Guide]*[http://developer.mozilla.org/en/docs/XPIDL:xpidl XPIDL]