This section contains samples that demonstrate how to migrate Windows Workflow Foundation (WF) content written using .NET Framework 3.5 to .NET Framework 4.

In This Section

Using a .NET Framework 3.0 or .NET Framework 3.5 Activity in a .NET Framework 4.5 Workflow
Demonstrates how to use the Interop activity to pass a string as an argument to a custom WinFX activity.

Using Interop with External Data Exchange
Demonstrates how to configure and run a WF3 workflow that uses ExternalDataExchangeService (and corresponding custom activities for calling methods and handling events) by using the Interop activity in a WF4 workflow service.