Visual Studio 2005 Extensions for WWF: Installation Bug

If you run Visual Studio 2005 Extensions for Windows Workflow Foundation setup from a folder that already contains a setup.exe, your old setup.exe may run giving you the illusion of installing the WWF extensions. When you open up a WF project in Visual Studio 2005, you may receive an error message stating "Project type is not supported by this installation". To correct this problem, run the extensions setup from a folder without any other executable (or at least without any setup.exe files).