When installing the Business Data Catalog Definition Editor which allows (makes it easy for) you to connect your data sources to the Sharepoint Business Data Catalog you can get this odd error. I was loading in Windows Server 2003 & all the posts I saw were for issues with Vista. Hope this helps those non-Vista users suffering this issue.
My Log entry:
Event Type: Error Event Source: MsiInstaller Event Category: None Event ID: 10005 Date: Time: PM User: CSISERVER Description: Product: Microsoft ® Application Definition Designer — The installer has encountered an unexpected error installing this package. This may indicate a problem with this package. The error code is 2869.
For those that install packages a lot this may be obvious – use the setup.exe directly instead of the msi package. It will install SQL 2005 Express with the app (there are some unhappy posts on that around) but the Definition Editor installs.
If looking for the SDK here are the links:
http://blogs.msdn.com/sharepoint/archive/2007/08/22/announcing-the-microsoft-business-data-catalog-definition-editor-for-microsoft-office-sharepoint-server-2007.aspx
http://www.microsoft.com/downloads/details.aspx?familyid=6d94e307-67d9-41ac-b2d6-0074d6286fa9&displaylang=en
