Visio events not getting fired when we upgrade from 2003 to 2007

[Sai_Tekuru]

Hello,

We have an application written on VS2005 refering to Visio 2003 DLLs using
C#. The application works fine(Certain functionality dealing with events) on
the machine with Visio 2003 installed without upgradation or downgradation
(Visio 2007 to Visio 2003).

Same application doesnt work when we upgrade to Visio 2007, when we
uninstall 2007 and install 2003 also it doesnt work.

Microsoft claims that there is nothing to be done at developer side to
ensure applications developed for Visio 2003 run properly on Visio 2007 (As
PIAs will take care).

We observed that "canvas.SelectionChanged" is not getting fired. Similar
issue is
found to be faced by others .

http://www.microsoft.com/office/com...38c1&mid=b78be514-c366-43a5-acc4-a3b5f4be0573


http://www.eggheadcafe.com/software/aspnet/29452487/visio-2003-control--stra.aspx

But could not find the solution for the same.
Our code refers to the Axinterop.Visocx.dll generated for 2003. We have
installed all the required PIAs for Visio 2007.

I wish to see that application runs fine both on Vision 2003 and 2007
versions without changing the references which are refering to 11(Visio 2003)
components .
Can anyone please suggest.

Regards,
Sai