Intercept highlight command

[leprendun]

If I write:

Sub Highlight()
MsgBox "Yadda"
End Sub

when I click the Highlight button I get the messagebox.

That's so strange! What version of Word are you using? I copied your code exactly and tried it out with no success on my end. Oddly enough, I have noticed that the intercepted highlight command works when using the highlight keyboard shortcut, but not the actual highlight button. Maybe the highlight button uses a different command than the shortcut?