I started working with Windows Workflow Foundation (WF) in 2006 during the early beta and Community Technology Preview (CTP) stages. WF became a shipping Microsoft product named .NET Framework 3.0 in November 2006 along with Windows Presentation Foundation (WPF) and Windows Communication Foundation (WCF). I actually started to learn and use all three of these foundations at the same time in my day job.

While I was impressed with the flexibility and capabilities of WPF and WCF, I was somehow inexplicably drawn to Windows Workflow Foundation (WF). WF isn’t just a new way to implement a user interface or a new way to communicate between applications ...

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