Download Microsoft® SQL Server® Compact 4.0 SP1 from Official Microsoft Download Center

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Microsoft® SQL Server® Compact 4.0 SP1

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Microsoft SQL Server Compact 4.0 is a free, embedded database that software developers can use for building ASP.NET websites and Windows desktop applications. SQL Server Compact 4.0 has a small footprint and supports private deployment of its binaries within the application folder, easy application development in Visual Studio and WebMatrix, and seamless migration of schema and data to SQL Server.