Jeff Parsons has created a fully functional emulation of Windows 3.1 accessible through modern web browsers, allowing users to explore the iconic Program Manager interface and various retro applications like File Manager, Paintbrush, and Media Player. The emulator operates seamlessly using JavaScript, requiring no installation, and offers both full-screen and windowed views with nostalgic elements like a floppy-disk dropdown. It includes classic shareware, vintage Microsoft Word versions, digitized PC Magazine issues, and games such as King's Quest and The Oregon Trail. This project highlights the slower pace of computing in the early 90s and serves as a reminder of advancements in hardware over the years. Previous attempts to run vintage operating systems on actual hardware have faced limitations, contrasting with Parsons' success in running Windows 95 in a browser.