Visio Super Utilities (V2.5.0.1 last updated 10th March 2010)
Gane Sarson/SSADM DFD/ERD for Visio (V2.2 last updated 10th February 2010)
Electronics stencils for Visio (V2.15 last updated 23rd February 2010)
Electrical stencils for Visio (V1.18 last updated 26th November 2009)
Bow Tie Diagrams for Visio (V1.4 last updated 8th June 2009)
Z-Order Control for Visio (V2.0 last updated 4th March 2009)
Protocol stack stencil for Visio (V1.2 last updated 26th June 2007)
JSD for Visio (V1.9.5.2 last updated 2nd February 2010)
Occam stencil for Visio (V1.1 last updated 11th February 2007)
Diacrit - Easy Unicode characters for any Microsoft Windows application (V4.5.3.0 last updated 24th February 2010)