outlook com add-in 2002 vs 2003

[anis]

I have built an outlook add-in on my machine (has outlook 2003) and is
running fine. But when running the same dll in another machine (has outlook
2002) it fails. Any idea why??
It does not throw error message. however, it's error message in COM Add-Ins
dialog says "Not Loaded. A runtime error occurred during the loading of
the COM add-in.". The registry LoadBehaviour value was changed to 2.

 

[pavan]

Hi
Can you give more info? Have you used Office 2003 interops? If yes it
cannot work on Outlook 2002 as it is not backward compatible. If you
need to develop add-in for more than one versions of Office then it's
best to code with the interops of least version of office unless you
would want to use version specific features.

Regards,
Pavan Kulkarni

 

[Ken Slovak - [MVP - Outlook]]

In general you compile on a machine that has the oldest version of Outlook
and the related PIA's installed. Any use of properties or methods that are
available only in later versions of Outlook have to be late bound.