Backward compatability for Outlook Add-in

[Ravikanth]

I have an add-in which is developed for Outlook 2000 and now I am
working on it to make it compatible with Outlook 2003. Let me know
whether it is possible to keep that Add-in compatible with Outlook
2000 after making it compatible with Outlook 2003 or do I need to keep
two different versions of add-ins for 2000 and 2003.

Please let me know if u have any information or links which gives me
some idea about that.

 

[Ken Slovak - [MVP - Outlook]]

I write all my addins to be compatible with Outlook 2000 - 2003 and use one
code base and installer for all three of those versions. What you have to do
is compile on a machine with Outlook 2000 installed so you are referencing
the Outlook 9 tlb and use late biding for any properties, methods or events
that were added in later versions of Outlook.

I get the Outlook version as part of my startup code and when I go to a
procedure that could only be used for a later version, such as creating a
search folder for Outlook 2003, I get the Outlook.Application object as an
Object from the global trusted Application object and use late binding on
that. You lose any Intellisense when you are developing but everything
works.