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This topic applies to Windows Workflow Foundation 4 (WF4).
.NET Framework version 4 provides the Interop activity for executing activities that derive from Activity within a workflow that is based on Activity. For more information, see the Migrating Workflows section.
.gif "Ee358732.note(en-us,VS.100).gif") Visual Basic Note: |
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| The Interop activity does not appear in the workflow designer toolbox unless the workflow's project has its Target Framework setting set to .Net Framework 4. |