We are looking for some code/component that can create a flow-chart (image) dynamically, preferably in .NET/C# (although a Silverlight/Flash-component that take
I built a workflow solution a while back and evaluated a number of diagramming controls, including the MindFusion control. I settled on the Syncfusion diagram control, primarily for its ease of use for an end user (especially when drawing connections).
I'm using the WPF edition, but they make editions for ASP.Net and WinForms. It has methods for exporting to images.
These are some of the components that I can remember evaluating; I'd recommend giving them a shot and seeing which you like best.
Syncfusion, NWoods, yWorks, Nevron, EasyDiagram