Jeffrey,

>This is code taken directly from Microsoft's Knowledge Base. Yet the first encounter with the API FindWindow causes an err = 53,
>error= "File not found: User"

The KB article that you're referencing is obviously a 16-bit solution. Get rid of the FindWindow declare that you have, and substitute this:

Private Declare Function FindWindow _
Lib "user32" Alias "FindWindowA" ( _
ByVal sClassName As String, _
ByVal sWindowName As String) As Long

Also, change how you are calling it. Instead of the 0&, use vbNullString.

Ciao, Craig