How to check what version of IIS refers to the process of determining the version of Internet Information Services (IIS) that is installed on a server. This is useful information to have when troubleshooting issues or ensuring that the server is up to date.
There are several ways to check the version of IIS that is installed on a server. One way is to use the IIS Manager tool. To do this, open IIS Manager and click on the Help menu. Then, click on the About option. The version of IIS will be displayed in the About dialog box.