FwEnable.vbs

By The Scripting Guys, Microsoft Corporation

This script enables Windows Firewall by setting the FirewallEnabled property to True, the default value for the setting in Windows XP Service Pack 2. This may be necessary if the firewall has been temporarily disabled. To perform this task, the script uses the Windows Firewall COM automation server. It runs only against the local computer.

FwEnable.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:

https://www.microsoft.com/downloads/details.aspx?FamilyId=9300BECF-2DEE-4772-ADD9-AD0EAF89C4A7&displaylang=en

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

cscript fwenable.vbs

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

'******************************************************************************
'FwEnable.vbs
'Author: Peter Costantini, The Microsoft Scripting Guys
'Date: 9/2/04
'Version: 1.0
'Enables Windows Firewall, the default on XP SP2, if it has been disabled.
'******************************************************************************

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."
  WScript.Quit
End If
'Get the current profile for the local firewall policy.
Set objProfile = objFwMgr.LocalPolicy.CurrentProfile
'Is firewall enabled?
If objProfile.FirewallEnabled = False Then
  WScript.Echo "Windows Firewall is disabled."
'Enable it.
  objProfile.FirewallEnabled = True
  WScript.Echo "Windows Firewall now enabled."
Else
  WScript.Echo "Windows Firewall already enabled."
End If

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Disclaimer

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.