In light of MSXML 4.0 no longer being supported by Microsoft, here's a list of commands that will remove the MSXML 4.0 SP2 parser and MSXML 4.0 SP3 parser (sometimes known as msxml4), along with any updates that are installed.
These have been tested on Windows XP and 7 without any problems, however you will need to run them with administrative rights on Windows 7.
To run these commands copy and paste the below commands to your clipboard, click on your start button, type command, right-click on the Command Prompt and then select 'Run as Administrator'. Then when the command prompt opens, right-click on the new black window and select 'paste'.
If you have any changes, or commands for other language installations feel free leave a comment.