ronco announced on the PPM forums that he is attempting to recreate C&C1 in HTML5 allowing the game to run in a web-browser.
There is already a working prototype which can be seen here. Basic pathfinding and animations are already in place.
For those who want to give it a go it is recommended to use Google Chrome. It's got the most complete HTML5 support.
Keep in mind that it is only a prototype, there is a long way to a final version, or even a beta!