When we started the OutlookEX UDF I was running Outlook 2002 and so I tested all functions with this quite old version. I moved on to Outlook 2010 and therefore can't any longer test with Outlook 2002. The OutlookEX UDF will be extended with functionality that is not available in versions older than Outlook 2007. My question is: Does anyone use a version older than Outlook 2007 with our UDF?