1)   Schematic 3.17
Schematic is a diagramming tool that allows complex diagrams to be drawn with ease. Schematic allows you to combine text, pictures, shapes and connectors to create clear and informative diagrams. UML, Electrical, Network, DFD, ERD plus many more...

 2)   ConceptDraw V: upgrade 7.5
ConceptDraw 7 is a powerful diagramming and drawing tool that enables you effectively visualize and communicate information and processes.

 3)   ConceptDraw V 7.6
ConceptDraw 7 is a powerful diagramming and drawing tool that enables you effectively visualize and communicate information and processes.

 4)   NetSpeeder2 1.0
NetSpeeder2 is a good network assistant, it lets you actually know the network status. you can actually see the transfer data. NetSpeeder2 will automatically cache webpages and block AD windows(popup window)