Try each of the following steps in order until the issue is resolved:

  1. Install Microsoft XML 4 Components by browsing to network deploy folder, selecting the ISSetupPrerequisites\Microsoft XML4 Components\ folder and running the msxml.msi file
     
  2. Run ProcessMonitor on the problem machine and change permissions accordingly.
     
  3. Run an update/repair from the deploy folder on the affected workstation.