http://blogs.flaphead.dns2go.com/archive/2008/07/22/versions-of-the-blackberry-enterprise-server-4-0-and-4-1-for-microsoft-exchange.aspxThis is a handy little KB from RIM, it enables you to determine the software version of your BlackBerry Enterprise Server ;-) Source: http://www.blackberry.com/btsc/dynamickc.do?externalId=KB05131&sliceId=SAL_Public&command=show&forward=nonthreadedKC&kcId=KB0513enCommunityServer 2.1 SP2 (Build: 61129.2)