Visual Studio 2013 Command Prompt Here for Windows Explorer Context Menu

To get a Visual Studio 2013 Command Prompt Here as a Context Menu (i.e., Right Click Menu) item in Windows Explorer, save this snippet to a .reg file and double click to import it into your registry:
[shell]Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Folder\shell\Command Line VS2013]
[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Folder\shell\Command Line VS2013\command]
@="cmd.exe /k echo on & pushd \"%1\" & \"C:\\Program Files (x86)\\Microsoft Visual Studio 12.0\\Common7\\Tools\\VsDevCmd.bat\"" [/shell]

If you prefer to manually create the key path in RegEdit and add the command as the default value, drop the outermost quotes and the backslash escaping:
[shell]cmd.exe /k echo on & pushd "%1" & "C:\Program Files (x86)\Microsoft Visual Studio 12.0\Common7\Tools\VsDevCmd.bat"[/shell]