SQL Server Compact ADO.NET / Installation Error / By adm-posmmy If you get an error similar to the following when trying to start POS offline system or e-leave system :“SQL Server Compact ADO.NET”This may due to the lack of SSCERuntime_x86-ENU or SSCERuntime_x64-ENU.Try install this 2 driver from the driver list in the download page. Categories > Basic Simple POS Guide > Change Log 25XXXX > Change Log 30XXXX > CRM Change Logs 25XXXX > Installation Error > Offline POS Terminal Guide > Online POS System Guide > Other Errors > POS System Blog > Workshop Change Logs 25XXXX > XpressWaiter Change Logs