Microsoft announced March 30 that SharePoint Designer 2007 is now a free download!

http://office.microsoft.com/en-us/sharepointdesigner/HA103607611033.aspx

SharePoint Designer is a great tool for easy customizations of your existing SharePoint sites. You can make simple workflows, cross site data shares and customize the look and feel of the site.

So, I've been using WSPBuilder to create my solutions, such a great add on for Visual Studio. I created a WSPBuilder Project and loaded up some app pages and web parts. I then realized I needed a workflow. So I right clicked on the project, selected Add then New Item. I selected Sequential Workflow Feature and clicked Add.

It added all of the wonder files and references itself. I did have to combine the new feature.xml file with my existing so this would install under a single feature.

When I went to open the workflow, the page errored:

The service 'System.Workflow.ComponentModel.Compiler.ITypeProvider' must be installed for this operation to succeed.  Please ensure that this service is available.

The reference to the DLL is in the project and is a good link. After searching the web for about 2 minutes I came across the following link:

http://www.codeplex.com/wspbuilder/Thread/View.aspx?ThreadId=27794

The GUIDs they were referencing didn't work, it broke my project. But I followed their lead. I created a new temporary WSPBuilder Project with Workflow project. I edited the .csproj file for the new project and copied the contents of the following tag, and then updated my original project csproj file.

<project>
  <PropertyGroup>
    <ProjectTypeGuids>{14822709-B5A1-4724-98CA-57A101D1B079};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>

It works like a charm! I can edit and update my workflow with ease.