https://www.pcgamer.com/windows-30-file-manager-source-code-takes-you-back-to-1990s-style-navigation/

It's been a long time since I've used Windows 3.0. A really long time. While I have no desire to dump Windows 10 and go back to an earlier era of computing, I do appreciate taking a trip down memory lane every so often. If you do as well, you can take a nosedive into nostalgia by downloading the source code for Windows 3.0's File Manager.

Microsoft has uploaded the source code to Github, where it is available to download and tinker with under the MIT OSS license, as TechCrunch notes. And yes, it works with Windows 10.