There is a patch available that prevents error message about version mismatch when you start certain Office 2007 applications on a computer that is running Microsoft Office Outlook 2007 with Business Contact Manager.
There’s a Knowledge Base article regarding this issue (KB935569), but by the time of this post it wasn’t available yet.
Overview
This patch prevents an error message when you start Excel 2007, PowerPoint 2007, Publisher 2007, or Word 2007 on a computer that is running Microsoft Office Outlook 2007 with Business Contact Manager. The error message is, “Office application version does not match”
System Requirements
Supported Operating Systems: Windows Vista; Windows XP Service Pack 2
Microsoft Office Outlook 2007 with Business Contact Manager
Technorati : Business Contact Manager, Outlook 2007
Del.icio.us : Business Contact Manager, Outlook 2007