(imported comment written by anthonymap91)
I also tried this, no luck. (Name entered “msxml 4.0 sp3 parser”)
Completed action parameter query “NAME” with description “Please enter the Program Name (needs to match the name in the add/remove programs”
Failed waithidden “{pathname of system folder & “\msiexec.exe”}” /QN REBOOT=ReallySuppress /X{name of key whose (value “DisplayName” of it as lowercase =(parameter “NAME” of action as lowercase) and name of it starts with “{”) of key “HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall” of registry}
download http://download.microsoft.com/download/A/2/D/A2D8587D-0027-4217-9DAD-38AFDB0A177E/msxml.msi
continue if {(size of it = 2434048 and sha1 of it = “aa70c5c1a7a069af824947bcda1d9893a895318b”) of file “msxml.msi” of folder “__download”}
waithidden msiexec.exe /i __download\msxml.msi /quiet /norestart
action may require restart “aa70c5c1a7a069af824947bcda1d9893a895318b”