Word 2000: COM Add-in doesn't work with the second instance

[ZakiMaksyutov]

Hello!
I wrote on Visual C++ 6 one COM Add-in for Word 2000.
It inserts my toolbar and one button. Then it sinks OnClick event of this button with standart IConnectionPointContainer/IConnectionPoint.
When WinWord runs, my addin starts and sink this event, but it works only for this instance
If I create a new document (manually) - the second window opens and there my addin doesn't work (precisely event from my button isn't catched by my addin).

May be someone knows what shoul I do?

Thanks for any help.

With best regards,
Zaki