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How to Re-Add the OWA Guard Module in IIS After an Exchange CU Update

This article applies to the following products:
Messageware OWA Guard

 

How to add the OWA Guard module in IIS after an Exchange CU update

 

  • Open IIS Manager
  • Navigate to Sites -> Default Web Site -> OWA
  • Double click on Modules
  • Select Configure Native Modules
  • Locate OWAGuard Module
  • The entry will be automatically added to the Modules page

 

Note:

If the OWAGuard Module is not visible, please perform the following:

 

  • Navigate to: C:\Program Files\Microsoft\Exchange Server\V15\FrontEnd\HttpProxy\owa
  • Create a copy of web.config file first
  • Edit the file web.config
  • Locate OWAGuard Module in: <modules>
  • Add the following entry: <add name="OWAGuard Module" />
  • Save the file when completed
  • Return to the Modules section in IIS Manager
  • On the Actions pane, select Configure Native Modules
  • Select the OWAGuard Module from the list
    • You may need to enter the file path:
    • C:\Program Files\Messageware\owaguard\service worker\og_serviceworker.dll
  • You can perform an IISReset and this should clean all app pools and restore OWA Guard functionality