SharePoint University

Hi -,

I was wondering if it was possible to create custom actions with Visual Studio 2005, integrate it into SharePoint and use it into SharePoint Designer...

By example I would like to Invoke a function in an Assembly or Invoke a external executable...

Greetings,

This absolutely can be done.  There is a lot of documentation on the topic:

http://www.johnholliday.net/archive/2007/03/27/Add-Your-Own-Custom-Workflow-Activities-to-SharePoint-Designer-2007.aspx

http://www.ideseg.com/AddCustomWorkflowActivitiesToSharePointDesignerPart1.aspx
http://www.ideseg.com/AddCustomWorkflowActivitiesToSharePointDesignerPart2.aspx

Hope this helps!