Thanks for the quick reply, Louis. I do see a lot of issues with svchost errors, so I'm not panicked. If I do nothing everything still seems to work normally, except for the annoying dialogue box that I have to move out of the way. However, I'd like to find a fix since I don't know what's not running that maybe should be.
The difficulty is that it happens during startup under all user logins, not when a particular program is opened. I ran Event Viewer and the error occurs right after the dialmgr service is started. Is there a way to find out what service is supposed to start next? That might give me a clue.
As I said, I tried several fixes that were given for other svchost errors including disabing the User-mode Driver Framework and following the steps outlined at http://support.microsoft.com/kb/927385
. I've also uninstalled several old programs that might have been trying to launch on startup. At this point, I feel like I'm grasping at straws, so any suggestions on utility programs that might point me in the right direction are appreciated.
On the Windows Update issue: I'm getting error code 0x80072EFF, which according to MS means I cannot connect to the server. However, I'm obviously not having an Internet connection issue. I've tried disabling my Trend Micro firewall, turning off the antivirus software altogether and applying one of MS's "Fix It" solutions (#50202) after following the trail from the error message. It's still not working. I even turned off Automatic Updates and rebooted the PC thinking that might be responsible for the svchost error. No luck there either. Since MS offers free help for Automatic Updates issues, I've submitted a case to them on that, and I mentioned the svchost issue as well.
Thanks again for any help you can provide.