1)   ConceptDraw V: upgrade 7.5
ConceptDraw 7 is a powerful diagramming and drawing tool that enables you effectively visualize and communicate information and processes.
UML diagram, Business drawing, network diagram, ERD, technical diagram, flow charts, landscape design, garden design, data flow, DFD,

 2)   ConceptDraw V 7.5
ConceptDraw 7 is a powerful diagramming and drawing tool that enables you effectively visualize and communicate information and processes.
UML diagram, Business drawing, network diagram, ERD, technical diagram, landscape design, landscape architecture, garden design, flow charts, data flow,

 3)   Crystal REVS for C 4.59
Crystal REVS is the best context-sensitive editor there is. Has Flowcharts, Rich Call/Caller/Class Trees, Edit Panels, Real Time Auto-Formatting, Visio export, State diagrams, static analysis, HTML docs, Data, Call Flow, Data Dependency, Compilers.
flowchart, programming, c, c++, format, beautify, styler, call trees, caller trees, class hierarchy,