Hi Ken,

thank you for replying. I'm working with an Inspector wrapper class
now. Nevertheless with this technique the handler

AddHandler oInspClass.myMail.Close, AddressOf myMail_Close

is already fired once independently from the number of Inspectors has
been opened so far.

But this technique is not working for the button click - I'm still
receiving multiple clicks when the handler is defined like this:

AddHandler oInspClass.MyButton.Click, AddressOf ButtonClick

BTW, it's a Button on the "E-Mail"-commandbar which is IMO part of the
Wordmail editor. The button is added Temporary = TRUE, but is
persisting in Word afterwards.

Do you have an example that demonstrates the adding of a handler for a
button on a Wordeditor commandbar considerating multiple Insepctors?

Kind regards,

Steffen