# Visual Studio 15 2017

Added in version 3.7.1.

Generates Visual Studio 15 (VS 2017) project files.

## Project Types

Only Visual C++ and C# projects may be generated (and Fortran with Intel compiler integration). Other types of projects (JavaScript, Powershell, Python, etc.) are not supported.

## Instance Selection

Added in version 3.11.

VS 2017 supports multiple installations on the same machine. The `CMAKE_GENERATOR_INSTANCE` variable may be used to select one.

## Platform Selection

The default target platform name (architecture) is `Win32`.

The `CMAKE_GENERATOR_PLATFORM` variable may be set, perhaps via the `cmake -A` option, to specify a target platform name (architecture). For example:

- `cmake -G "Visual Studio 15 2017" -A Win32`

- `cmake -G "Visual Studio 15 2017" -A x64`

- `cmake -G "Visual Studio 15 2017" -A ARM`

- `cmake -G "Visual Studio 15 2017" -A ARM64`

For compatibility with CMake versions prior to 3.1, one may specify a target platform name optionally at the end of the generator name. This is supported only for:

`Visual Studio 15 2017 Win64`

  Specify target platform `x64`.

`Visual Studio 15 2017 ARM`

  Specify target platform `ARM`.

## Toolset Selection

The `v141` toolset that comes with Visual Studio 15 2017 is selected by default. The `CMAKE_GENERATOR_TOOLSET` option may be set, perhaps via the `cmake -T` option, to specify another toolset.

Added in version 3.8: For each toolset that comes with this version of Visual Studio, there are variants that are themselves compiled for 32-bit (`x86`) and 64-bit (`x64`) hosts (independent of the architecture they target). By default this generator uses the 32-bit variant even on a 64-bit host. One may explicitly request use of either the 32-bit or 64-bit host tools by adding either `host=x86` or `host=x64` to the toolset specification. See the `CMAKE_GENERATOR_TOOLSET` variable for details.

Added in version 3.14: Added support for `host=x86` option.