Embedded Excel in Word Document?

[Brian]

Hello,

I have a COM Addin for Office XP. The Add in simply adds a Button and
CommandBar. This button is used to manipulate a custom document property.

Because of the flaky event handling in Excel, I have to put my
button/command bar initialization code in the StartupComplete event for my
addin. The problem is that this code is executing when I embed an Excel
spreadsheet into a Word document. How can I prevent my addin from running
when Excel is running in the context of another application?

Thanks!

Brian