Microsoft Windows XP Professional
Yet another Windows XP in the browser, but with a File System and comes with it, Programs.

Its more of a browser sim you can't go launching internet explorer etc..
GitHub - ducbao414/win32.run: Windows XP in the browser, with a File System, programs, XP-style File Picker and Saver dialogs, 3rd-party program, etc. 🦄 🚀 💽
Windows XP in the browser, with a File System, programs, XP-style File Picker and Saver dialogs, 3rd-party program, etc. 🦄 🚀 💽 - ducbao414/win32.run
It's for nostalgia's sake!
WIN32.RUN runs solely on the client-side (the user's browser). All files are processed right in the user's browser. There is no file uploading, no server-side processing (cause I'm broke, can't afford it). Each user has his own OS session (just like the good old Windows XP)Files (and Folders) in win32.run are stored locally in IndexedDB. Apps (and 3rd-party apps) can interact with files through win32.run homemade file picker and saver dialog (with Windows XP appearance).