Today while installing Enterprise Library 4.0 on my Windows 2008 “desktop” machine I received the following error towards the end of the installation: “The system administrator has set policies to prevent this installation” After clicking OK to acknowledge this error the prompt closes and the installation completes successfully. I quickly looked to see what had happened and it seems everything installs except for the Source and Samples. I then tried to run the Enterprise Library 4.0 - May 2008 - Source Code.msi file again (this is what fails and can be found in C:\Program Files\Microsoft Enterprise...