Reply 20 of 32, by jaZz_KCS
Thank's to fans and modding community you can download the online installers of RA and TD with the latest unofficial community patches and you can adjust the resolution to whatever you desire. The same goes for the Dune 2000 unofficial patch.
If you mean CnCNet, then I must say that these just make the engines compatible with modern systems, albeit do nothing to improve the multiplayer aspect of the games at all. Example: In Red Alert Online by CnCNet, you will only see heavy tank spam, as nothing else is viable. There are no balance changes made upon the old games, which were not really compatible and useful for competitive multiplayer.
Whereas OpenRA - a freely available reinterpretation and reconstruction of the original engines under an openly developed fashion has successfully polished the multiplayer to be compatible with the standards of modern RTS multiplayer. If you are interested in playing the original titles like Tiberian Dawn and Red Alert online in multiplayer with features more akin to modern RTS, then I would recommend you give OpenRA a go.
For ppl more interested in the SinglePlayer aspect of these games, see the first page of the topic for a rant of mine how to make the utmost community patched versions work even under Win98SE.