The Visio Type libraries

The publicly displayed version number of an application like Visio can be quite different from the internal version number that is revealed to programmers. For example, Microsoft Visio 2010 is the public version number for the internal version number 14. Therefore, programmers need to know that the Visio Type Library version is 14, although their users will know it as Visio 2010.

Note

There were no 13 versions 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 version number 11, and Microsoft Visio 2007 was internally 12. Version 13 went the same way as the thirteenth floors in high-rise buildings in the States—pandering to the superstitions of the masses.

Microsoft Visio 2010 may...