Today Microsoft released the long awaited Windows Workflow Foundation at PDC.
You can get all the details from the Windows Vista Development Center for Workflow.
Microsoft’s awesome new Windows Workflow Community Site is located at http://www.windowsworkflow.net.
WinWF will provide a framework for building and hosting workflows inside Windows. It will be part of the WinXF namespace along with Windows Communication Foundation (Indiago) and Windows Presentation Foundation (Avalon).
The Beta Code for WinWF is available though the Vista Development Center.
Watch for samples and videos to be posted shortly to my Windows Workflow Foundation page.