David Carswell contributed a Microsoft Visio 2007 stencil incorporating the PICOL SVG iconset (090316). This stencil is an import of the SVG icons, with aspect-ratio protection applied, and is released under the same license as PICOL itself.
You can download the Visio 2007 stencil HERE
I coulnd´t check the file, beacause I have no Visio. If there are any problem please contact David