We recommend using Visual Studio 2017

The Experimental Instance


The new home for Visual Studio documentation is Visual Studio 2017 Documentation on docs.microsoft.com.

The latest version of this topic can be found at The Experimental Instance.

To safeguard your Visual Studio development environment from untested applications that might change it, the VSSDK provides an experimental space that you can use to experiment. You develop new applications by using Visual Studio as usual, but you run them by using this experimental instance.

Every application that has a VSIX package launches the Visual Studio experimental instance in debug mode.

If you want to start the experimental instance of Visual Studio outside a specific solution, run the following command at the command window:

"<Visual studio installation path>\Common7\IDE\devenv.exe" /RootSuffix Exp

System_CAPS_ICON_note.jpg Note

The experimental instance is written to the registry under the <version number>Exp and <version number>Exp_Config nodes. For example the Visual Studio 2015 experimental registry area is

HKCU\Software\Microsoft\VisualStudio\14.0Exp and HKCU\Software\Microsoft\VisualStudio\14.0Exp_Config

We recommend that you run your extension in the experimental instance while you are developing it. When you deploy the extension, it runs in the development instance. For more information about registering applications, see Registering VSPackages.