Unable to Uninstall MS Beta Development Tools?

Other people might find this helpful when they encounter errors uninstalling pre-release dev tools from '05 and '06: Pre-released Microsoft .NET Framework 3.0 Uninstall Tool. It uninstalls pre-release versions of VS.NET, .NET Framework (2.0 and 3.0), SQL Server 2005 Express and MSDN Libraries. There is a warning that it also uninstalls the final versions of SQL Server 2005 Express.