Sqlserverce Sdf File On Windows 7

I've have an application on Windows XP that takes an sdf file (SQLServerCE3.0) from a mobile device (Windows Mobile 5.0) import and delete some data and then put it back to the dev

Solution 1:

You must use the 3.1 engine (3.0.5300 or higher) as documented here: http://blogs.msdn.com/b/sqlservercompact/archive/2009/04/01/after-moving-the-database-from-one-platform-to-other-the-first-sqlceconnection-open-takes-more-time.aspx