The Developer Command Prompt for Visual Studio automatically sets the environment variables that enable you to easily use .NET Framework tools. The Developer Command Prompt is installed with full or community editions of Visual Studio. It is not installed with the Express versions of Visual Studio
Running command prompt from inside Visual Studio
For easier access, you can add the Visual Studio Developer Command Prompt or any other command prompt to the Tools menu on Visual Studio, by adding it to the external tools list. This is how you can accomplish that:
Open Visual Studio.
Select the Tools menu and choose External Tools....
On the External Tools dialog box, choose the Add button. A new entry appears
Enter a Title for your new menu item such as Command Prompt.
In the Command field, specify the file you want to launch such as %comspec% or C:\Windows\System32\cmd.exe .
In the Arguments field, specify where to find the specific command prompt you want to use such as /k "C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\Tools\VsDevCmd.bat" (this will launch the Developer Command Prompt installed with Visual Studio 2015). This value needs to be changed according to your Visual Studio version and installation location.
Choose a value for the Initial directory field such as Project Directory .
Choose the OK button.