COM Error Handler Mystery

[gcue]

I am trying to prevent the dialog box from appearing when the windescription error is following message "The specified domain either does not exist or could not be contacted" 

but it still pops up

even if i comment the msgbox line the message box with the same text shows

Global $oGlobalCOMErrorHandler = ObjEvent("AutoIt.Error", "_ErrFuncGlobal")

Func _ErrFuncGlobal()

    If StringInStr($oGlobalCOMErrorHandler.windescription, "The specified domain either does not exist or could not be contacted") = 0 Then
        $error = @ScriptName & " (" & $oGlobalCOMErrorHandler.scriptline & ") : ==> Global COM error handler - COM Error intercepted !" & @CRLF & _
                @TAB & "err.number is: " & @TAB & @TAB & "0x" & Hex($oGlobalCOMErrorHandler.number) & @CRLF & _
                @TAB & "err.windescription:" & @TAB & $oGlobalCOMErrorHandler.windescription & @CRLF & _
                @TAB & "err.description is: " & @TAB & $oGlobalCOMErrorHandler.description & @CRLF & _
                @TAB & "err.source is: " & @TAB & @TAB & $oGlobalCOMErrorHandler.source & @CRLF & _
                @TAB & "err.helpfile is: " & @TAB & $oGlobalCOMErrorHandler.helpfile & @CRLF & _
                @TAB & "err.helpcontext is: " & @TAB & $oGlobalCOMErrorHandler.helpcontext & @CRLF & _
                @TAB & "err.lastdllerror is: " & @TAB & $oGlobalCOMErrorHandler.lastdllerror & @CRLF & _
                @TAB & "err.scriptline is: " & @TAB & $oGlobalCOMErrorHandler.scriptline & @CRLF & _
                @TAB & "err.retcode is: " & @TAB & "0x" & Hex($oGlobalCOMErrorHandler.retcode)
        
        MsgBox($msg_error, $script_name, "COM ERROR: " & @CRLF & @CRLF & $error)        
    EndIf

EndFunc   ;==>_ErrFuncGlobal

what is going on?

[Jos]

Are you sure that it is the MsgBox() from this code displaying the error, as that test will be not true when the text matches?