Visio 2007 Portable 2021 Download Site

(October 2017) and no longer receives security updates, you might consider: Visio Plan 2:

In the world of technical diagramming and vector graphics, Microsoft Visio has long been the industry standard. Even though we are now several generations past its release, remains a sought-after tool for many IT professionals, engineers, and project managers. It offers a robust set of features without the subscription-based model of modern software. Visio 2007 Portable Download