Hi Mark, If packet filtering is enabled, that doesn't matter (at least in this context). HTH, Tom Thomas W Shinder www.isaserver.org/shinder <http://www.isaserver.org/shinder> ISA Server and Beyond: http://tinyurl.com/1jq1 Configuring ISA Server: http://tinyurl.com/1llp <http://tinyurl.com/1llp> -----Original Message----- From: Simon Weaver [mailto:Simon.Weaver@xxxxxxxx] Sent: Tuesday, August 19, 2003 5:34 PM To: [ISAserver.org Discussion List] Subject: [isalist] FW: RE: Is TCP 135 clamped down? http://www.ISAserver.org Mark Just discovered on the External Interfacr "Client For MS Networks was ticked" as well as "File / Printer Sharing". I have now unticked this! Any comments? Simon Weaver Technical Consultant MCSE+Internet / MCSE Windows 2000 Integrated Solutions Corp. Ltd http://www.iscl.net <http://www.iscl.net/>