We recommend that Visio is kept up-to-date with the latest service pack and patches. Service Pack 3 (SP3) is now available for Visio 2007.
Two of the documented improvements are of particular interest, as they relate to support issues that customers have raised with us.
Triaster raised an issue with Microsoft in April 2009 regarding an error when opening certain Visio files.
Detail on this issue is on the Knowledge Base, to view go to: www.tinyurl.com/73rymem
In response, Microsoft released a hotfix for Visio 2007 in October 2009.
To download this go to: http://support.microsoft.com/kb/976478
The fix has now been incorporated in SP3, which addresses this issue without the need for the hotfix.
We've received files from customers that report an error when opened, and automation behaviour is lost. This particular problem was related to a corruption in the VBA project embedded within the file.
Detail on this issue is on the Knowledge Base, to view go to: www.tinyurl.com/cwjn253
The fix requires replacing the VBA Project data. So, SP3 should help to avoid the issue in the first place.