To use PasswordSync, you must install at least the Microsoft .NET 2.0 Framework. This Framework is installed by default on Windows 2008 domain controllers. If you are using a Windows 2000 or 2003 domain controller, you can download the toolkit from the Microsoft Download Center at:
http://www.microsoft.com/downloads
Enter .NET Framework Redistributable in the Keywords search field to quickly locate the Framework toolkit.
The toolkit installs the .NET Framework.