Windows Workflow, VS 2010 and the Toolbox

Is your toolbox for Windows Workflow broken in VS 2010? (Toolbox does not show the categories, or the items within them or the toolbox items are all disabled).

First make sure you have a workflow document open.

If that simple mistake didn’t fix your issue, then close Visual studio and browse to the following folder:

“%USERPROFILE%\Local Settings\Application Data\Microsoft\VisualStudio\10.0”

Delete the files with extension “.TBD” in this folder. (These files are hidden and if you cant see them you will need to turn on the ability to view hidden files in Windows Explorer). Restart VisualStudio and your toolbox will be rebuilt after which you should have your WF toolbox items available (at least this did it for me).