This issue may occur if the components of MSXML 4.0 SP2 have been corrupted.
Let’s perform the following steps to remove and reinstall MSXML 4.0 SP2 and
its update.

Step 1: Download Microsoft Windows Installer CleanUp Utility
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1. Visit:
http://download.microsoft.com/downlo...BD/msicuu2.exe
2. Save the file on the Desktop.
3. Please double click the msicuu2.exe file to install it on the computer.

Step 2: Remove MSXML 4.0 Service Pack 2 and its update if listed
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1. Click Start -> (All) Programs->Windows Installer Clean Up.
2. If MSXML 4.0 Service Pack 2 or MSXML 4.0 Service Pack 2 is listed, please
locate and remove them.

Step 3: Download and manually install the update
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1. Please download the update from the following link:

MSXML 4.0 Service Pack 2
http://download.microsoft.com/downlo...629c/msxml.msi

MSXML 4.0 SP2 Security Update (KB936181)
http://download.microsoft.com/downlo...936181-enu.exe

2. Please note their location and install manually.