Did you check Windows Firewall (or Windows Firewall with Advanced Security)? If that is still on, look in event viewer, Windows Logs, Security for Failure Audits from the "Filtering Platform" to see what might be getting blocked.
As for dcom, I haven't messed with it too much in WS08 yet, but there were changes in WS03 as of SP1 that might require 3rd-party apps to have additional permissions set-it could be doing something that needs permissions adjusted for the same reason. See http://support.microsoft.com/kb/903220. I am not a programmer nor a com/dcom expert, but we have one third party app that needs this changed on our WS03 servers. To adjust the dcom permissions, we run dcomcnfg and expand \component services\computers\my computer. Right-click to get properties here, go to com security. You need may to edit limits for both your "Access Permissions" and "Launch and activation permissions" to allow remote access, remote launch, and remote activation. If you have a group you can restrict it down to it will be more secure than opening for "everyone". -Bonnie From: Gavin Wilby [mailto:gavin.wi...@gmail.com] Sent: Thursday, March 05, 2009 6:20 AM To: NT System Admin Issues Subject: 2008 server and DCOM Hi Guys, Im sorry, but im gonna have to be a little vague here: I have a new 2008 standard server, that has been (successfully) set up as a TS on a small domain. There is an app that a 3rd party is installing that uses a database server for its data, and the client program connects to said database and does it job. Or rather it doesnt on the 2008 box, the client side installed fine but it then cannot connect to the database server. All XP boxes on the same domain work fine. The 2008 Ts can ping the server, by both name and IP, all other programs work fine. the best that the 3rd party can tell me is that the "client connects using DCOM", and thats all I know until the German support guys get back to me. It doesnt write ANYTHING to any event log when the connection fails. Any ideas? Does 2008 have to have something "switched on" for DCOM to work? The database is held on a 2003R2 standard server on SQL2005SP2. -- Gavin Wilby, Twitter: http://twitter.com/gavin_wilby GSXR Blog: http://www.stoof.co.uk ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
