Install IIS Web Platform Installer

Install the IIS Web Platform Installer. The IIS Web Platform Installer is a piece of software released by Microsoft and is a component of IIS once it has been installed. The Install IIS Web Platform Installer can then be used to install the ARR module and the URL Rewrite module in IIS. These are required to use IIS as a reverse proxy.

Download the IIS Web Platform Installer

Version: WebPI 5.0 (or higher)
https://docs.microsoft.com/en-us/iis/install/web-platform-installer/web-platform-installer-direct-downloads

Step-by-step guide

To install the Web Platform Installer, please proceed as follows:

1. Download the file "WebPlatformInstaller_xxxx.msi".
2. Execute the msi file by double-clicking on it.
   A dialog with a security warning will be shown.
   Click on "Run".
3. Accept the terms of the License Agreement.
   
   
   
   
   
   
4. Click on "Install".
   
   
   
   
   
   
5. Click on "Finish".
   You have installed the Web Platform Installer.
   Restart IIS so that the icon for the Web Platform Installer is shown.
   

Check whether the installation was successful

Start IIS. If the Web Platform Installer installation was successful, you will now see the corresponding icon in the "Management" area.