https://www.dotnetzone.gr:443/cs/blogs/pkanavos/archive/2009/06/01/sharepoint-sp2-installation-peculiarities.aspxBy now everyone has heard that the Sharepoint Server Service Pack 2 activates a 180-days trial timeout . Fortunately, this really minor problem (no-one is affected for the next 6 months) can be fixed easily followind the steps described in KB 971620 .elCommunityServer 2.1 SP3 (Build: 20423.1)