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How to Manage the Messageware ISAPI Filter to Temporarily Disable OWA Guard

This article applies to the following products:

Messageware OWA Guard 2016

Messageware OWA Guard 2013

 

SUMMARY

The Messageware OWA Guard can be temporarily disabled by removing the Messageware ISAPI filter located in IIS of the external facing Exchange servers where the Messageware product is installed.

To restore the Messageware OWA Guard functionality again, the Messageware ISAPI filter can be re-added to IIS on all external facing Exchange servers where the product is installed

An IIS reset is suggested to clear & re-initialize the application pools in IIS after removal and addition of the ISAPI filter

 

RESOLUTION

 

Removing the Messageware ISAPI Filter for OWA Guard

Open IIS Manger

1.  Navigate to <Servername>\Sites\Default Web Site

  • In the IIS section (mid pane), select ISAPI Filters
  • Remove the entry Messageware
     

 

Adding the Messageware ISAPI Filter for OWA Guard

Open IIS Manger

1.  Navigate to <Servername>\Sites\Default Web Site

  • In the IIS section (mid pane), select ISAPI Filters
  • Select Add and create a new entry as show in screen capture