When browsing https://localhost:10443/webmain.dll or http://127.0.0.1:10443, some users may observe the following error:
res://ieframe.dll/dnserror.htm#.
This error has been observered only in IE8.
Solution offered:- Please go to the below mentioned website
http://support.microsoft.com/kb/923737
run the Fix It I.e (MicrosoftFixit50195.msi) & reboot the system, only if required.
This MicrosoftFixit50195.msi will reset i.e 8 setting and wmc problem will be solved.