In this blog post I will describe the steps required to get the Device MSI installed on your development PC. Unfortunately, Microsoft has removed the official download of the SQL CE 3.5 SP2 package for devices, which contains the cab files for installing the SQL CE runtime on various processor flavors of Windows CE / Windows Mobile and also contains a cab file for installing a (ADO.NET provider for SQL Server), that allows you to access SQL Server directly from a Windows Mobile device. A number of developers are still, in 2017, developing new solutions for Windows CE / Windows Mobile using Visual Studio 2008 and SQL Server Compact 3.5 SP2.