To make the Compatibility View mode work, IE automatically downloads a list of incompatible websites and stores it on your computer.

Select the Compatibility tab. Select the Run This Program in Compatibility Mode option. From the drop-down list, choose the operating system you ran before upgrading to Vista.

For Windows 7 users requiring access to older apps, it's a fine guided tour of a feature that doesn't just jump out at users and explain itself.

New macOS 'Compatibility Mode' Options Let Developers Decide How Fullscreen Apps Handle the Notch Tuesday October 19, 2021 12:55 am PDT by Tim Hardwick ...