AddFlow is an ActiveX control that lets you quickly build flowchart-enabled applications. Features such as distinct colors, fonts, shapes, styles, pictures, text, and so on for each object of the diagram (node or link) are available. Nodes stay connected when moved. Metafiles support, serialization, multi-level undo/redo, printing, zooming, Bezier and spline curves, reflexive links, link jumps, multiselection, navigation in the graph. Runtime distribution is royalty free.

An AddFlow diagram is a set of objects that can be linked each other. The objects are called nodes and the lines that connect objects are called links. AddFlow provides two ways to build diagrams: interactive (with the mouse): programmatically with the AddFlow API. Graph Layout Components

You may also wish to draw a graph without having to worry about the position of each node or link. Our Graph Layout Controls are AddFlow extensions that perform autolayout graph drawing and therefore automatically auto-arrange the graph. For details HFlow, TFlow and SFlow on the "Editions" tab.

$499
http://www.lassalle.com/products.htm