Hello. I actually have more than one question and I don't know whether I should post separate topics or write all in one, so since they all are about implementing a server I'll keep it simple - all here.

Brief info first, the server should deal with both TCP and UDP protocols: TCP for transferring large amounts of data, files and pre-loading caching, UDP for game-state-updates and small in-game information chunks which are critical on delivery speed and size. It should run on Windows/Winsock.

The first question is: what's a better idea - to have one program running which deals with both UDP and TCP parts or to keep them separate?

The second question is about the TCP server: it should support multiple [>1000] connections at once. What's the best way to organize the connections part - using Windows asynchronous sockets or 1-thread-per-connection style or anything else I may not be informed about?

Thanks a lot for help..