I snagged this from my notes on when we deployed XP/GPO's and RA. It was a beating to get this to work, maybe something in this will spark a thought on your part.
Edit the new custom GPO to have the following settings 1. CompConfig, Windows Settings, Local Policies, Security Options: a. DCOM: Machine Access Restrictions b. DCOM: Machine Launch Restrictions Grant TCURAP-XYZ full control on all these rights when you define this setting. 2. CompConfig, Windows Settings, Local Policies, User Rights Assignments: a. Access this computer from the network (add the TCURAP-XYZ group) 3. CompConfig, Administrative Templates, System, Remote Assistance a. Offer Remote Assistance - Add the TCURAP-XYZ group (be sure to include the TCU\) 4. Make sure the department has a TCU WinXP Firewall GPO with the following entries: SOFTWARE\Policies\Microsoft\WindowsFirewall\DomainProfile\AuthorizedAppl ications\List\%systemroot%\PCHEALTH\HelpCtr\Binaries\Helpctr.exe:*:enabl ed:Helpctr.exe %systemroot%\PCHEALTH\HelpCtr\Binaries\Helpctr.exe:*:enabled:Helpctr.exe SOFTWARE\Policies\Microsoft\WindowsFirewall\DomainProfile\AuthorizedAppl ications\List\%systemroot%\PCHEALTH\HelpCtr\Binaries\helpsvc.exe:*:enabl ed:helpsvc.exe %systemroot%\PCHEALTH\HelpCtr\Binaries\helpsvc.exe:*:enabled:helpsvc.exe SOFTWARE\Policies\Microsoft\WindowsFirewall\DomainProfile\AuthorizedAppl ications\List\%systemroot%\system32\sessmgr.exe:*:enabled:sessmgr.exe %systemroot%\system32\sessmgr.exe:*:enabled:sessmgr.exe Bryan Lucas Server Administrator Texas Christian University > > PS: forgot to mention. XP box is a domain member, windows firewall > disabled > > Mike Guest > IT Solutions > *HML > *Padiham DDI: +44 (0)1282 682550 > Internal Extension: (61) 2550 > > ------------------------------------------------------------------------ > > *From:* Mike Guest > *Sent:* 24 October 2006 10:30 > *To:* activedir@mail.activedir.org > *Subject:* [ActiveDir] OT: Issue with remote assistance offers > > Anyone seen this before? > > I have an xp box sitting behind an internal firewall (long story) that > I want to be able to offer unsolicited remote assistance to. I can > already RDP to the box, but the session on that box I want to offer > assistance to is already an RDP session, so that solution's out. > > I have opened TCP135 and 3389. I can create an offer on the remote > system (as a file), move it to my machine and successfully initiate an > RA session. > > However, when I try to initiate an RA session without an invite, the > help and support center window freezes for about 30 seconds then tells > me "The remote machine does not exist or is unavailable" - I've tried > both by name and by IP > > I've double-checked with a port scanner and 135 is definitely open (as > is 3389, but I couldn't do the invited RA or RDP without that) > > Anybody? > > Thanks > > > > ********************************************************************* > This email is intended only for the addressee named above. As this > email may contain confidential or privileged information, if you are > not the named addressee or receive this message in error, please > notify us immediately, delete it and do not make use of or copy it. > > This message is protected by copyright. HML accepts no responsibility > for viruses found in this message or any file attachment. > > Homeloan Management Limited > Registered in England No. 2214839 > 1 Providence Place, Skipton, North Yorkshire BD23 2HL > > ********************************************************************** > > > > ********************************************************************* > This email is intended only for the addressee named above. As this > email may contain confidential or privileged information, if you are > not the named addressee or receive this message in error, please > notify us immediately, delete it and do not make use of or copy it. > > This message is protected by copyright. HML accepts no responsibility > for viruses found in this message or any file attachment. > > Homeloan Management Limited > Registered in England No. 2214839 > 1 Providence Place, Skipton, North Yorkshire BD23 2HL > > ********************************************************************** List info : http://www.activedir.org/List.aspx List FAQ : http://www.activedir.org/ListFAQ.aspx List archive: http://www.mail-archive.com/activedir@mail.activedir.org/ List info : http://www.activedir.org/List.aspx List FAQ : http://www.activedir.org/ListFAQ.aspx List archive: http://www.mail-archive.com/activedir@mail.activedir.org/