Ahhhh…finally found a solution. Needed to specify the class for Word. This worked:
Declare Function FindWindow Lib “user32” Alias “FindWindowA” (strClassName As CString, strWindowName As CString) As Integer
Declare Function SetForegroundWindow Lib “user32” (hWnd As Integer) As Integer
Var nWinHandle As Integer = FindWindow(“opusapp”,“Document1 - Word”)
Call SetForegroundWindow(nWinHandle)