Calling Add-On with a custom menu in Visio 2003

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Hi;

I have a custom solution developed with visio 2002. In that there's
acustom menu & when we click on that a Add-On .exe file is called.

menuItemObj.Caption = "Check &Completeness"
menuItemObj.AddOnName = "SetXMLGenerateMenu.exe"

But this does't function with Visio 2003. When the menu item is clicked,
it gives run time error '9' saying "Subscription out of range"

If u have any idea please help me.

Thanks
regards,
Nadikani