I have done searching on this subject ( http://www.google.com/search?hl=en&ie=UTF-8&oe=UTF-8&q=Error+1722+&btnG=Google+Search)
And it is something to do with the fact that windows installer is currupt. I
did not have enough time to find the complete answer to you're question but
it seems if though you will have to download the windows installer.
