Grab the PowerShell code below, it easily creates DGML, Directed Graph Markup Language, from a piped input stream. Then view the graph in Visual Studio 2010 .
Here is another link Cool New Graph Visualization Technologies in Visual Studio 2010. Plus, look at another PowerShell version using the Microsoft Research tool NodeXL PowerShell, Visualize the Peanut Butter Recall Data.
Tainted Peanut Butter
The viewer for directed graph documents in VS 2010 has several nice features: zoom, pan, drill down, right/left/directed layouts and more. Using the same dataset (comma separated values) as I did in the NodeXL version, it was quick work to generate the Xml representation for this graph.
Recalling Firm by Category
Screen Cast Walkthrough
Requires Visual Studio 2010 Beta 2
For this to work you need to download it, HERE. I don’t know if there is a stand alone viewer for DGML.
Grab The Code