SQL Server Compact cannot run properly in a 64-bit System

Microsoft SQL Server Compact 3.5 Service Pack 2 for Windows Desktop

Install the 32-bit and 64-bit versions of Microsoft SQL Server Compact 3.5 Service Pack 2 on a 64-bit computer
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Microsoft SQL Server Compact 3.5 Service Pack 2 has a separate
Windows Installer (MSI ). You must install the 32-bit and 64-bit versions of the SQL Server Compact MSI file on a 64-bit computer. In 64-bit
Only the 32-bit version of SQL Server Compact 3.5 SP2 MSI file is installed on the computer.
Application failed. If you are developing an application that uses SQL Server Compact 3.5 SP2
The 32-bit and 64-bit versions are packaged together and installed with your applications on the 64-bit computer.

To ensure that all applications dependent on SQL Server Compact 3.5 SP2 on the computer function properly, Install SQL Server Compact 3.5 SP2 as follows:

Install SQL Server Compact 3.5 SP2 on a 32-bit computer (x86:
1. Install the SQL Server Compact 3.5 SP2 32-bit version by running the SSCERuntime-CHS-x86.msi

Install SQL Server Compact 3.5 SP2 on a 64-bit (x64 or AMD64) COMPUTER:
1. Install the SQL Server Compact 3.5 SP2 32-bit version by running the SSCERuntime-CHS-x86.msi
2. Then, install the 64-bit version of SQL Server Compact 3.5 SP2 by running the SSCERuntime-CHS-x64.msi

For more information, visit http://support.microsoft.com/kb/974247.

Software: http://www.microsoft.com/zh-CN/download/details.aspx? Id = 5783