At present Windows Embedded Compact 2013 platform builder is a plugin of Visual Studio 2012. Meanwhile Visual Studio 2013 is released. Microsoft is working side by side to make Windows Embedded Compact 2013 support on VS2013. Up coming Windows Embedded Compact 2013 is updated with a Freescale IMX6 Sabre lite BSP and a WiFi driver for TISDP44xx BSP.
On February 25th at Embedded World, Microsoft announced the general availability date in the near future (1H of 2014) for the update release to Windows Embedded Compact 2013. This release includes integration with Visual Studio 2013, an inbox Wi-Fi driver and other improvements. This announcement was part of a presentation on Feb 25th on ‘Windows Embedded Compact 2013’ that provided details on the update release.
For more information, check
http://blogs.msdn.com/b/windows-embedded/archive/2014/02/05/coming-soon-visual-studio-2013-and-other-updates-to-compact-2013.aspx