Hi tia,
from Microsoft, for this update....
If the Msxml4.dll file is locked, the file may not be updated when you apply security update 936181. To work around this issue, use the following commands to uninstall Msxml4.dll:
MsiExec.exe /uninstall {37477865-A3F1-4772-AD43-AAFC6BCFF99F} /passive
Del %windir%\system32\msxml4.dll
Then try and do the updates again
Those 2 command have to be typed in a Command Prompt. Click on Start button. In the Search box, type cmd. The Command Prompt will show up in the search results. Right click on Command Prompt icon and select Run as administrator.
Let us know how you get on,
regards
Steve