http://blogs.msdn.com/nigelbridport/archive/2006/01/12/511972.aspxA great add-on for SharePoint and it is free. Retention Server from 80-20 Software has just been formally released! For organizations using Microsoft SharePoint that need to manage the retention lifecycle of electronic documents and email, 80-20 Retentionen-GBCommunityServer 2.1 SP1 (Build: 61025.2)