Phil, If you're talking about Remote Assistance on XP, that doesn't use port 135. It uses port 3389. On a side note, port 135 is the RPC end-point mapper. When a client connects to a "server" on port 135, additional ports (high ports/user ports [1025+] are negotiated and used. Unless you manually specify a set range of ports to be used for this, the ports negotiated are dynamic and can range anywhere from 1025 to 65535. You can set this range of ports manually through the following Registry key or by using dcomcnfg -> Component Services -> Computers -> My Computer -> Properties -> Default Protocols Tabbed Page -> Connection-oriented TCP/IP -> Properties. URL: http://support.microsoft.com/?kbid=154596 Cordially yours, Jerry G. Young II MCSE (4.0/W2K) Atlanta EES Implementation Team Lead HHS Engineering Unisys 11493 Sunset Hills Rd. Reston, VA 20190 Office: 703-579-2727 Cell: 703-625-1468 THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY MATERIAL and is thus for use only by the intended recipient. If you received this in error, please contact the sender and delete the e-mail and its attachments from all computers. -----Original Message----- From: phil harrison [mailto:phil@xxxxxxxxxxxxxxx] Sent: Monday, February 06, 2006 5:09 PM To: [ISAserver.org Discussion List] Subject: [isalist] Offer remote assistance http://www.ISAserver.org I'm trying to find some information on how to configure the firewall to allow the "offer remote assisatnce" through which is port 135. I'm trying to reach other sites within the same company but located outside of our firewall and the request will be transferred out onto our VPN connection and has to leave through the firewall to reach other locations can anyone advise Many Thanks ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=isalist ISA Server Newsletter: http://www.isaserver.org/pages/newsletter.asp ISA Server FAQ: http://www.isaserver.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Visit TechGenix.com for more information about our other sites: http://www.techgenix.com ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: gerald.young@xxxxxxxxxx To unsubscribe visit http://www.webelists.com/cgi/lyris.pl?enter=isalist Report abuse to listadmin@xxxxxxxxxxxxx