Introducing the Visio Type libraries

The publicly displayed version number of an application such as Visio can be quite different from the internal version number that is revealed to programmers. For example, Microsoft Visio 2013 is the public version number for the internal minor version number 15 (you can almost ignore the major version number because it rarely changes). Therefore, programmers need to know that the Visio Type Library version is 15, although their users will know it as Visio 2013.

Note

There was no Version 13 prior to 14 because Visio was at Version 6 (externally Visio 2000) when Microsoft bought the company in 1999. At that time, Microsoft Office was internally at Version 9, so Microsoft Visio 2002 was internally hiked up to Version 10 to be at the same version number as Microsoft Office 2002. At this point, Microsoft Visio 2003 was internally at Version 11, and Microsoft Visio 2007 was internally at Version 12. Version 13 went the same way as the thirteenth floors in...