https://www.dotnetzone.gr:443/cs/blogs/abekiaris/archive/2009/10/07/modeldifference-module.aspxDictionaryDifferenceStore has been refactored and added the following features Localization Support Multiple application support Ability to change application model without restarting User,Role differences for web and win environments Persist web settingselCommunityServer 2.1 SP3 (Build: 20423.1)