The schema location attribute in the root node is wrong, since you don't have a namespace in your instance. Here is an instance that works: Also make sure that your schema actually exists at the specified location and is valid. Here's some more information: http://msdn.microsoft.com/en-us/library/ms256139(VS.85).aspx Erik Westermann - wWorkflow.net - BizTalk Consulting Services SOA * ESB * BPI * SaaS ... forget the alphabet soup - get the main course with our consulting services! wWorkflow.net or +1 416-809-1453

One more point. The source video which i am using does not contain any audio. Will it matter while running the graph.

This article may be of help - I know it was for me. Enumerate your leaf classes[^] You can have classes registering a name, that you can then use to create them. There's functions to get the list of names, so you could add them to a list control if you liked. From his article: IMPLEMENT_LEAF_CLASS(CBlueFilter, CBaseFilter, _T("Blue Filter")) Good luck, Iain. Iain Clarke appears because CPallini still cares.

You can't find out the parameter list of functions in a dll. You need a description or a header file. MS

Use hooks, as in this article[^]. rechi