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<h2 class="wp-block-heading">OFFLINE ADDRESS BOOK ISSUE AFTER MIGRATION FROM EXCHANGE 2003 TO EXCHANGE 2010</h2>



<p>Error: event ID: 9360 OABGen encountered an error while generating the changes.oab file for version 2 and 3 differential downloads of address list </p>
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<figure class="wp-block-image"><img src="http://old.moh10ly.com/_/rsrc/1431547306419/blog/exchange/offline-address-book-issue-after-migration-from-exchange-2003-to-exchange-2010/exch2010ts1.png" alt=""/> 

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</figure>



<figure class="wp-block-image"><a href="http://old.moh10ly.com/blog/exchange/offline-address-book-issue-after-migration-from-exchange-2003-to-exchange-2010/exch2010ts2.png?attredirects=0"><img src="http://old.moh10ly.com/_/rsrc/1431547306419/blog/exchange/offline-address-book-issue-after-migration-from-exchange-2003-to-exchange-2010/exch2010ts2.png" alt=""/></a></figure>



<figure class="wp-block-image"><a href="http://old.moh10ly.com/blog/exchange/offline-address-book-issue-after-migration-from-exchange-2003-to-exchange-2010/exch2010ts3.png?attredirects=0"><img src="http://old.moh10ly.com/_/rsrc/1431547306419/blog/exchange/offline-address-book-issue-after-migration-from-exchange-2003-to-exchange-2010/exch2010ts3.png" alt=""/></a></figure>



<h2 class="wp-block-heading"><strong>RESOLUTION 1</strong></h2>



<p><strong>Important</strong> This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:</p>



<p><a href="http://www.google.com/url?q=http%3A%2F%2Fsupport.microsoft.com%2Fkb%2F322756&;sa=D&;sntz=1&;usg=AFQjCNFbCAbLQgYJW4VctE_V20v5SLpjNA" target="_blank" rel="noreferrer noopener">322756</a> How to back up and restore the registry in Windows</p>



<h2 class="wp-block-heading">To resolve this issue, follow these steps on the server that is running Exchange Server 2003:</h2>



<ol class="wp-block-list"><li>Click <strong>Start</strong>, click <strong>Run</strong>, type <strong>regedit</strong> in the <strong>Open</strong> box, and then click <strong>OK</strong>.</li><li>Locate and then right-click the following registry subkey:</li><li><strong>HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeSA\Parameters</strong></li><li>Point to <strong>New</strong>, and then click <strong>DWORD Value</strong>.</li><li>Type <strong>OAL post full if diff fails</strong> to name the new value.</li><li>Right-click <strong>OAL post full if diff fails</strong>, and then click <strong>Modify</strong>.</li><li>In the <strong>Value data</strong> box, type <strong>1</strong>, and then click <strong>OK</strong>.</li><li>Exit Registry Editor.</li><li>Dismount and then mount the Public Folder Store again. To dismount and then mount the public folder store, follow these steps:<ol><li>Start Exchange System Manager.</li><li>Expand <strong>Servers</strong>, expand the server that you want, expand <strong>Storage_Group_Name</strong>, and then right-click <strong>Public Folder Store</strong>. </li><li><strong>Note</strong> If administrative groups are defined, follow these steps:<ul><li>Expand <strong>Administrative Groups</strong>.</li><li>Expand <strong>Administrative_Group_Name</strong>.</li><li>Expand <strong>Servers</strong>.</li><li>Expand the server that you want.</li><li>Expand <strong>Storage_Group_Name</strong>.</li><li>Right-click <strong>Public Folder Store</strong>.</li></ul></li><li>Click <strong>Dismount Store</strong>, and then click <strong>Yes</strong> to continue.</li><li>Right-click <strong>Public Folder Store</strong>, click <strong>Mount Store</strong>, and then click <strong>OK</strong>.</li></ol></li></ol>



<p>A new parent Legacy Exchange DN container value &#8216;/o=HEMA/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients&#8217; was found during generation of the differential update file for offline address list &#8216;\Global Address List&#8217;. This will force clients using this offline address list to do a full download of the offline address list.</p>
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<p>&#8211; \Default Offline Address List </p>



<h2 class="wp-block-heading"><strong>Resolution 2:</strong></h2>



<p>If the first resolution didn&#8217;t work, try to disable version 2 and 3 OAB, then update again and see if you get any errors.</p>
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<p>Note that this may take some time to take effect.</p>



<figure class="wp-block-image"><img src="http://old.moh10ly.com/_/rsrc/1431547306419/blog/exchange/offline-address-book-issue-after-migration-from-exchange-2003-to-exchange-2010/exch2010ts4.png" alt=""/></figure>
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