By The Scripting Guys, Microsoft Corporation

This script lists the open ports and authorized apps for Windows Firewall. To perform this task, the script uses the Windows Firewall COM automation server. It runs only against the local computer.

FwListExceptions.vbs is a bonus script; it does not correspond to any of the scripts that ships with Application Compatibility Testing and Mitigation Guide for Windows XP Service Pack 2 and which are documented in the Appendix. You can download a Windows Installer (.msi) file that installs the Guide and its associated scripts from:


To use the script, copy the code, paste it into Notepad, and then save the script as FwListExceptions.vbs. To run the script, open a command prompt window to the directory of the script and type:

cscript fwlistexceptions.vbs

If the default script host on the computer is Cscript.exe, the initial "cscript" may be omitted.

'Author: Peter Costantini, The Microsoft Scripting Guys
'Date: 9/1/04
'Version: 1.0
'This script lists the open ports and authorized apps for Windows Firewall.

'Set constants.

On Error Resume Next
'Create the firewall manager object.
Set objFwMgr = CreateObject("HNetCfg.FwMgr")
If Err <> 0 Then
  WScript.Echo "Unable to connect to Windows Firewall."
End If
'Get the current profile for the local firewall policy.
Set objProfile = objFwMgr.LocalPolicy.CurrentProfile
WScript.Echo VbCrLf & "Windows Firewall"

'Get collection of open ports.
Set colOpenPorts = objProfile.GloballyOpenPorts
WScript.Echo VbCrLf & "All listed ports:"
For Each objPort In colOpenPorts
  WScript.Echo VbCrLf & "Name: " & objPort.Name
  If objPort.Protocol = 6 Then
    strProtocol = "TCP"
  ElseIf objPort.Protocol = 17 Then
    strProtocol = "UDP"
    strProtocol = "UNKNOWN"
  End If
  WScript.Echo "  Protocol: " & strProtocol
  WScript.Echo "  Port Number: " & objPort.Port
  If objPort.Scope = 0 Then
    strScope = "All"
  ElseIf objPort.Scope = 1 Then
    strScope = "Local Subnet"
    strScope = "UNKNOWN"
  End If
  WScript.Echo "  Scope: " & strScope
  WScript.Echo "  Enabled: " & objPort.Enabled

'Get collection of authorized applications.
Set colAuthorizedApps = objProfile.AuthorizedApplications
WScript.Echo VbCrLf & "All listed applications:"
For Each objApp In colAuthorizedApps
  WScript.Echo VbCrLf & "Name: " & objApp.Name
  WScript.Echo "  Process Image File: " & objApp.ProcessImageFileName
  If objApp.Scope = 0 Then
    strScope = "All"
  ElseIf objApp.Scope = 1 Then
    strScope = "Local Subnet"
    strScope = "UNKNOWN"
  End If
  WScript.Echo "  Scope: " & strScope
  WScript.Echo "  Enabled: " & objApp.Enabled

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This sample script is not supported under any Microsoft standard support program or service. The sample script is provided AS IS without warranty of any kind. Microsoft further disclaims all implied warranties including, without limitation, any implied warranties of merchantability or of fitness for a particular purpose. The entire risk arising out of the use or performance of the sample scripts and documentation remains with you. In no event shall Microsoft, its authors, or anyone else involved in the creation, production, or delivery of the scripts be liable for any damages whatsoever (including, without limitation, damages for loss of business profits, business interruption, loss of business information, or other pecuniary loss) arising out of the use of or inability to use the sample scripts or documentation, even if Microsoft has been advised of the possibility of such damages.