LYCOS RETRIEVER 
Visio: Shapes
built 655 days ago
The products from Apprentice Systems can be used to extend existing Visio shapes into full blown applications that range from quotation and esitmation, business process modeling, decision modeling, and engineering assembly modeling. Have a look!
Source:
Here you can find a few charts to compare how the Visustin and Visio versions differ. The layout is roughly similar, but the links work differently. Also some of the shapes look different.
Source:
MORE ABOUT
Shapes