Web Browser form & Excel Reference -- Error

I have a MDI project where all forms are MDI children.
In this project I have web browser form.
I recently tried to reference Excel so I could use the
Excel object (in a different form) but when I did this I
received a "Procedure declaration does not match description of event or procedure having same name" error
on the browser form's tbToolBar_ButtonClick subroutine.
This is a subroutine which is automatically created, it's
private and it's on a completely different form (although
the browser is called from the current form).

I would like to open a csv file in Excel by a command button
on the current form.

Help, how can I fix this?