Removing the ISAPI Filter Plug-In

Before you begin

For information about version compatibility, see the Version Equivalencies Between Forcepoint DLP and EIP Infrastructure/Web/Email Components.

When you remove the ISAPI Filter plug-in from a Forefront TMG machine.

Steps

  1. Log on with local administrator privileges and navigate to Start > Control Panel > Uninstall a program (under Programs).
  2. Select Web Protection Solutions, then click Uninstall/Change.
    This launches the uninstaller.
  3. On the Remove Components screen, select Filtering Plug-in and any other components to be removed, and then click Next.
  4. When the Stop Microsoft Firewall Service screen appears, stop the Microsoft Firewall service and then click Next.
    Note: Leave the uninstaller running as you stop the Microsoft Firewall service, and then return to the uninstaller to continue.
    1. Go to Start > Programs > Administrative Tools > Services or Server Manager > Tools > Services.
    2. Right-click Microsoft Forefront TMG Firewall, then select Stop.
      When the service has stopped, return to the installer and continue the uninstallation process.
      Important: When the Firewall service is stopped, TMG goes into lockdown mode. Depending on your network configuration, network traffic may be stopped. Typically, the Firewall service must be stopped for only a few minutes.
  5. When the following message appears, start the Firewall service and then click OK:
    The ISAPI Filter has been unconfigured, you can now start the Microsoft Firewall Service.
    • Leave the uninstaller running as you start the Firewall service, and then return to the uninstaller to continue.
    • To start the Firewall service:
      • Go to Start > Programs > Administrative Tools > Services or Server Manager > Tools > Services.
      • Right-click Microsoft Forefront TMG Firewall, then select Start.
  6. On the Software Removed screen, choose whether you want to restart now or later and then click Done.