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Windows CE Dreamcast Community Edition with Experimental Ethernet Link Shim

A self-contained Dreamcast Windows CE image that exposes a desktop shell and experiments with BBA/W5500 Ethernet through a custom mppp.dll link adapter.

josephsr

Published June 29, 2026

148 UCC

15 WCC

11 VAR

Original author: maximqaxdOriginal source (new tab)

Windows CE Dreamcast Community Edition with Experimental Ethernet Link Shim

Components

Hardware components
W5500

WIZnet - W5500

x 1

Sega Corporation - Sega Dreamcast

x 1

Sega Corporation - Sega Dreamcast Broadband Adapter / BBA

x 1

Software Apps and online services

Microsoft / Sega Dreamcast - Windows CE for Dreamcast

x 1

WIZnet parts

Project description

Overview Windows CE Dreamcast Community Edition is a research-oriented rebuild of the Windows CE runtime environment used on Sega Dreamcast discs. Instead of treating Windows CE only as a hidden game runtime, the project turns it into a visible, windowed desktop system with built-in applications, a bootable Dreamcast disc image pipeline, and an experimental Ethernet networking layer. The repository describes the system as a real Windows CE desktop running on Dreamcast hardware and states that it builds into a standard bootable disc.gdi. The project is not just a visual shell demo. It…

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