Best cross-platform solution for network server? [closed]

Question

im starting a new project and for the first time i want to be cross-platform. But the tricky is my project would involve listen server, cryptos etc., etc. So i was wondering what is the best solution for cross-platform development (OpenSSL, instead of MSCrypto etc.) that would be easy to write with VS2010 (yeah the RC). The language is still not specified (depends on witch we would be easier) but im leaning to Visual C++.

In Cross-Platform i mean windows/generic unix compilation.

Answer 1

Qt4 is a complete crossplatform framework, including a very strong socket library. also Boost.Asio http://www.boost.org/doc/libs/1_42_0/libs/libraries.htm.