http://msmvps.com/blogs/theproblemsolver/archive/2008/08/07/sql-server-compact-3-5-sp1-released.aspxSteve Lasker just announced that SQL Server Compact 3.5 service pack 1 is released, read his announcement here . They added support for the entity framework, great stuff. And another neat feature is native 64 bits support. No longer do you need to targetenCommunityServer 2008.5 SP2 (Build: 40407.4157)