I have been runninga fairly happy EBS 2008 setup for around 1 month now, however i installed Microsoft sqlserver 2005 express edition with advanced services service pack 3(KB955706) on the management server, immedietelay after the restart i was unable to open the ebs admin console with the following error.

Description:
  Stopped working

Problem signature:
  Problem Event Name:      CLR20r3
  Problem Signature 01:      adminconsole.exe
  Problem Signature 02:      6.0.5700.0
  Problem Signature 03:      48bdddc8
  Problem Signature 04:      UpdateServicesUtils
  Problem Signature 05:      6.0.0.0
  Problem Signature 06:      48bdddc1
  Problem Signature 07:      62
  Problem Signature 08:      1f
  Problem Signature 09:      System.IO.FileNotFoundException
  OS Version:      6.0.6001.2.1.0.272.30
  Locale ID:      2057

I also cannot open SCE2007 at all with the following error

Description:
  Stopped working

Problem signature:
  Problem Event Name:      CLR20r3
  Problem Signature 01:      B0JHPZQR1B3GGBEMYEIFSKRWRQLFYWDD
  Problem Signature 02:      6.0.1885.0
  Problem Signature 03:      47be40e8
  Problem Signature 04:      Microsoft.EnterpriseManagement.UI.ConsoleFramework
  Problem Signature 05:      6.0.4900.0
  Problem Signature 06:      47b71032
  Problem Signature 07:      7df
  Problem Signature 08:      d7
  Problem Signature 09:      System.IO.FileNotFoundException
  OS Version:      6.0.6001.2.1.0.272.30
  Locale ID:      2057

I immediately removed the update, restarted and crossed my fingers, same issue, in event veiwer the only thing that it could be is as follows:

Event ID 2268
source IIS-W3SVC-WP
Could not load all ISAPI filters for site 'WSUS ADMINISTRATION'.  Therefore site startup aborted.

In IIs i checked the WSUS Administration website, and the folder that contained the website has been Wiped, its just not there,  I then tried to restore the folder from backup, whenever it starts it says version mismatch.

Is there a way to fix this by reinstalling the SCE2007 component for example without a complete reinstall?

thanks