The compatibility mode in Windows 10 or 11 is an excellent way to run old versions of software.

I haven't run into any must-have apps that aren't working in Vista, so I can't vouch for this, but it is supposed to be how it works. If you've tried Vista's compatibility mode, share your ...

If you access Outlook Web App in Internet Explorer, only the light version is enabled. Learn how to render the app in IE11 compatibility mode.

Windows 7 does a pretty good job of detecting applications made for older Windows versions and offering a compatibility fix. If you've got an app that just won't run, though, take a dive into the ...

If you see This app can't run on this device message from Program Compatibility Assistant, then this post is sure to help you.

Thankfully, Windows 7 offers a way around the application compatibility problem in the form of its new Windows XP Mode. Through the magic of operating system virtualization, Windows XP Mode lets you ...