Microsoft Word 1.1a Runs Natively on x64 Windows
Microsoft Word for Windows 1.1a, Native X64 Port
A developer has ported the original Microsoft Word for Windows 1.1a, codenamed Opus, to run as a native 64-bit Windows executable. The project builds the original C source and resources, replacing 16-bit assembly, segmented memory, and Win16 APIs with modern x64-compatible code. It includes a full test suite covering UI workflows like typing, formatting, and saving. The port is not an emulator but a true recompilation, preserving the original user experience.
This is not an emulator or a reimplementation using a modern editor control.