Exporting PST Files in Summation and eDiscovery

Created by: Justin Johns
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How can I export a PST file in Summation Pro and/or eDiscovery? 


There are three methods to exporting a PST file.  

  1. Export New PST 
  2. Export Reduced PST
  3. Export SMART PST (Added in version 6.3)

All of these methods require one of the following applications be installed on the machine running the "AccessData Work Manager" configured for Exports:

  • Microsoft Collaboration Data Objects (CDO).  This is free and available from
  • One of the below versions of Outlook:
    Outlook 2007 32-bit Standard & Professional
    Outlook 2010 32-bit Standard & Professional
    Outlook 2013 32-bit Professional Plus
    Outlook 2016 32-bit Professional Plus (7.0 and later only)

New PST 

If the export contains a PST file, this option creates a new PST for each PST file and adds only the messages (with their attachments) that are being exported.

Reduced PST

This option creates a copy of each original PST and then removes all the messages that are not being exported.This option is faster if the majority of the emails within the original PST are being exported. However, this method may take much longer to complete if the majority of the emails within a PST are not being exported.


If the export contains a PST file, the application will examine each PST to be exported and determine the faster method between creating a new or reduced PST. If there are multiple PSTs being exported, the best method will be determined for each PST based on whether the majority of email families will or will not be exported.


IMPORTANT! - CDO does not support exporting Unicode email messages.  Attempting to export Unicode messages to PST with CDO installed will result in errors and the exported PST will be missing any Unicode email messages. 

Both CDO and Microsoft Outlook cannot be installed on the same PC. If CDO is already installed, you must uninstall it before installing Microsoft Outlook. Likewise, you may receive an error if you try to install CDO when you already have Microsoft Outlook installed.


Use case scenarios:

Use new PST when you have a 10 GB PST file and are exporting 500 MB. Reduced PST requires Summation to remove 9.5 GB of data. Building a new 500 MB PST would be faster. 

Use reduced PST when Use New PST when you have a 10 GB PST file and are exporting 9.5 GB. This requires Summation to remove 500 MB of data. Building a new 9.5 GB PST would take longer.


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  • Avatar
    Gary Ramsey

    This does not work for Summation 5.6.3. I've tried with both True and False and the exports always go the Reduced PST route. We're starting the prep to upgrade to 6.0.1. Is this fixed in the latest version?

  • Avatar
    Justin Johns

    Gary, I've created a ticket for one of our engineers to help you with this.

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