void IE_DocumentComplete(object pDisp, ref object URL)
 {
     if (pDisp is SHDocVw.InternetExplorer)
     {
         SHDocVw.InternetExplorer IE = (SHDocVw.InternetExplorer)pDisp;
         IE.ExecWB(SHDocVw.OLECMDID.OLECMDID_PRINT, SHDocVw.OLECMDEXECOPT.OLECMDEXECOPT_DONTPROMPTUSER, 2);
     }
 }