http://msmvps.com/blogs/theproblemsolver/archive/2009/06/30/passing-data-into-a-windows-workflow-foundation-4-workflow.aspxPassing parameters into a workflow is similar in WF4 as it was in WF3. In both case a Dictionary&lt;string, object&gt; is passed in when creating the workflow instance object. Alternatively when using the WF4 WorkflowInvoker you can pass it into the InvokeenCommunityServer 2008.5 SP2 (Build: 40407.4157)http://msmvps.com/blogs/theproblemsolver/archive/2009/06/30/passing-data-into-a-windows-workflow-foundation-4-workflow.aspx#1700559Tue, 14 Jul 2009 02:10:09 GMTd67277c4-116b-43f1-b688-e9ef184ea916:1700559Hnsxcody<p>n98F26 </p> <div style="clear:both;"></div><img src="http://msmvps.com/aggbug.aspx?PostID=1700559" width="1" height="1">http://msmvps.com/blogs/theproblemsolver/archive/2009/06/30/passing-data-into-a-windows-workflow-foundation-4-workflow.aspx#1697382Tue, 30 Jun 2009 18:45:56 GMTd67277c4-116b-43f1-b688-e9ef184ea916:1697382Sam Gentile's Blog (if (DeveloperTask == Communication && OS == Windows)<p>ASP.NET MVC/Web Programming How we do MVC - View Models VS2010 Beta 1 Web Application Project Database package and SMO Options ASP.NET 4.0 Enhancements to Data Controls C# Community Convergence LI Connected Systems (Azure, WF, WCF, etc) Windows Azure</p> <img src="http://msmvps.com/aggbug.aspx?PostID=1697382" width="1" height="1">