Visio Super Utilities (V2.5.0.3 last updated 26th July 2010)
Gane Sarson/SSADM DFD/ERD for Visio (V2.5 last updated 13th August 2010)
Electronics stencils for Visio (V2.17 last updated 20th August 2010)
Electrical stencils for Visio (V1.19 last updated 20th August 2010)
Bow Tie Diagrams for Visio (V1.5 last updated 12th August 2010)
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 (V1.10.0.0 last updated 31st March 2010)
Occam stencil for Visio (V1.1 last updated 11th February 2007)
Diacrit - Easy Unicode characters for any Microsoft Windows application (V4.5.5.0 last updated 25th May 2010)