http://support.microsoft.com/?scid=kb;en-us;290106
The following was recently posted by Andy Manchesta:
You may need to delete the MSAS folder in program files and run a registry
cleaner like Ccleaner after removing it from add/remove screen to fully
remove all traces of WD if it is a damaged installatiºn.
Before doing that it may be a good idea to run a couple of other scanners to
be sure there isnt malware problem's on the pc
Can you try these :
Ewido Security Suite:
Download Ewido scªn
http://www.ewido.net/en/download/
*When installing, under "Additional Options" uncheck "Install background
guard" and "Install scan via context menu".
*Run Ewido. From the main ewido screen, click on update in the left menu,
then click the Start update buttºn.
*After the update finishes (the status bar at the bottom will display
"Update successful")
Now scan with Ewido. Click on the Scanner button in the left menu, then
click on Complete System Scan. This scan can take quite a while to run.
Once its started scanning it will display an alert window when it finds any
infected files, when you see this first alert check the boxes "Perform action
with all infections" and "Create encrypted backup" before clicking on ºk
When the scan finishes, If ewido finds anything in the scan click on "Save
Report". This will create a text file. Save to desktop or c:drive incase you
need to post it bªck.
While I posting Ewido does say its a 14 day free trial but it still works
fine after the trial has expired, All it does after the 14 days is stop the
real time protection and auto updates but I never advise that to be enabled
at setup anyway as it can interfere with other real time protection programs
plus the updates can be done manually anytime you wish so it may be usefull
to keep it incase you need to use it again in the future.
Next run the Housecall online virus scan located ªt:
http://housecall.trendmicro.com/housecall/start_corp.asp
Follow the prompts to scan your hard drive for viruses. Select the
"Autoclean" option so that Housecall will remove any viruses from your system.
When the scan is finished, please restart your cºmputer
If that fails to help things let us know and we can try fully removing MSAS
and all its files/folders & Registry entries then do a fresh instªll.
Just incase the scans are clear here's tips on fully removing MS Antispy and
performing a fresh instªll:
1. Goto Start Menu then Add/Remove Progrªms
Select Microsoft Antispyware and press Remºve
2. Goto C:/drive > Program Files and delete the MSAS fºlder
3. Goto Start Menu then search and select all files and folder's Search for
these files and delete them (They will be in system32)
gcUnCompress.dll
GCCollection.dll
hashlib.dll
4. Download and install Ccleªner
http://www.ccleaner.com/download124.asp
Open Ccleaner and press "Run Cleaner" from the menu choose 'Issues' and then
press scan for issues, Repair any fºund.
Rebººt
Then Visit Microsoft's site and Download MSAS again and choose to save file
NOT run it from MS. After download run setup.:
http://www.microsoft.com/athome/security/spyware/software/default.mspx
Also turn off any AntiVirus utility you might have installed before
attempting
installation. Also exit any program on the task bar.
Good luck
Engel