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Article ID: 122686, created on Aug 20, 2014, last review on Aug 20, 2014

  • Applies to:
  • Operations Automation


When you use Microsoft Outlook 2013, the Offline Address Book (.oab) is not downloaded if mailbox is located on Exchange 2007. Additionally, you can see an error with code: 0x80070057.


POA configures public folder distribution for Exchange 2007 OABs, but Outlook 2013 does not support downloading the Offline Address Book from the Exchange server public folder. Outlook 2013 supports only OAB version 4 which can be downloaded only if web-based distribution is configured for OAB. For additional information, refer to Microsoft KB2845987


POA does not support configuring Web-Based distribution for Exchange 2007 OABs. We recommend migrating to Exchange 2013, where POA does use web-based distribution by default. Also the following script can be used for enabling web-based distribution for one or all Exchange 2007 OABs (execute script in Exchange Management Shell on any Exchange 2007 server):

$global:ErrorActionPreference = "Stop" 
$organizationName = "*"
$virtualDirectories = @()

Get-ExchangeServer | where {$_.AdminDisplayVersion -like "Version 8.*" -and $_.ServerRole -contains "ClientAccess"} | foreach {$virtualDirectories += Get-OabVirtualDirectory -Server $_.Name}

if(-not $virtualDirectories) {
    throw "Unable to find Exchange 2007 OAB directories"

Get-OfflineAddressBook ($organizationName + " OAL") | where {$_.ExchangeVersion -like "*(8.0.*"} | Set-OfflineAddressBook -VirtualDirectories $virtualDirectories 

To configure the web-based distribution for all OABs, execute script without changes. To configure the web-based distribution for a single OAB, change value for $organizationName variable from "*" to name of the corresponding organization in AD (OU name). For example $organizationName = "S000000040"

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