When attempting an install of SharePoint 2007 beta, you may receive the following error message:

Setup is unable to proceed due to the following error(s):
This product requires Windows Workflow Foundation beta 2 (build 3.0.3807.7 or later).

If you do have the correct version of WWF installed and you are getting this error, this is because you do not have the correct version of .NET Framework installed. SharePoint 2007 beta requires the WinFX Runtime Components beta 2, available here.

If you already installed a previous beta version of .NET Framework 3.0, you will need the .NET Framework 3.0 Uninstall Tool to remove it, before you can go ahead with the WinFX Runtime Components beta 2 install.

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