http://blogs.technet.com/b/exchange/archive/2006/04/19/troubleshooting-version-store-issues-jet-errversionstoreoutofmemory.aspxEDIT: 5/6/2010: In order to see some additional ways to collect information related to those problems, please see this blog post . Recently we have been seeing several issues in Support Services where Event ID 623 is being logged on the server. Theen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.technet.com/b/exchange/archive/2006/04/19/troubleshooting-version-store-issues-jet-errversionstoreoutofmemory.aspx#426901Mon, 01 May 2006 12:34:37 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:426901Garry <br> <br> <br> <br> <br>Security <br>&amp;amp;nbsp; <br> <br> <br> <br> <br> <br>News <br>&amp;amp;nbsp; <br>Are Smart Cards the New Way of Life? - Solving the...<img src="http://blogs.technet.com/aggbug.aspx?PostID=426901" width="1" height="1">http://blogs.technet.com/b/exchange/archive/2006/04/19/troubleshooting-version-store-issues-jet-errversionstoreoutofmemory.aspx#426892Mon, 01 May 2006 12:33:38 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:426892Garry <br> <br> <br> <br>Security <br>&amp;amp;nbsp; <br> <br> <br> <br> <br> <br>News <br>&amp;amp;nbsp; <br>Are Smart Cards the New Way of Life? - Solving the...<img src="http://blogs.technet.com/aggbug.aspx?PostID=426892" width="1" height="1">http://blogs.technet.com/b/exchange/archive/2006/04/19/troubleshooting-version-store-issues-jet-errversionstoreoutofmemory.aspx#426077Sun, 23 Apr 2006 17:44:20 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:426077Henrik Walther Blog » Blog Archive » Troubleshooting Version Store issues - JET_errVersionStoreOutOfMemoryPingBack from <a rel="nofollow" target="_new" href="http://blogs.msexchange.org/walther/2006/04/23/troubleshooting-version-store-issues-jet_errversionstoreoutofmemory/">http://blogs.msexchange.org/walther/2006/04/23/troubleshooting-version-store-issues-jet_errversionstoreoutofmemory/</a><img src="http://blogs.technet.com/aggbug.aspx?PostID=426077" width="1" height="1">http://blogs.technet.com/b/exchange/archive/2006/04/19/troubleshooting-version-store-issues-jet-errversionstoreoutofmemory.aspx#425940Fri, 21 Apr 2006 20:15:42 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:425940subject: exchangeWARNING: Next week I won't post the traditional &amp;quot;Weekend reading&amp;quot;. Actually I won't post anything, I'll...<img src="http://blogs.technet.com/aggbug.aspx?PostID=425940" width="1" height="1">http://blogs.technet.com/b/exchange/archive/2006/04/19/troubleshooting-version-store-issues-jet-errversionstoreoutofmemory.aspx#425739Thu, 20 Apr 2006 01:30:41 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:425739Danger WillSounds like the issue we worked through only yesterday with PSS for 5 hours. &nbsp;:)<div style="clear:both;"></div><img src="http://blogs.technet.com/aggbug.aspx?PostID=425739" width="1" height="1">