[Rotana]

 10004
  WSAEINTR -- Interrupted function call. 
  10013
  WSAEACCES -- Permission denied. 
  10014
  WSAEFAULT -- Bad address. 
  10022
  WSAEINVAL -- Invalid argument. 
  10024
  WSAEMFILE -- Too many open files. Actually, it's too many open sockets. 
  10035
  WSAEWOULDBLOCK -- Resource temporarily unavailable. 
  10036
  WSAEINPROGRESS -- Operation now in progress. A blocking operation is in progress. 
  10037
  WSAEALREADY -- Operation already in progress. 
  10038
  WSAENOTSOCK -- Socket operation on non-socket. 
  10039
  WSAEDESTADDRREQ -- Destination address required. 
  10040
  WSAEMSGSIZE -- Message too long. 
  10041
  WSAEPROTOTYPE -- Protocol wrong type for socket. 
  10042
  WSAENOPROTOOPT -- Bad protocol option. 
  10043
  WSAEPROTONOSUPPORT -- Protocol not supported. 
  10044
  WSAESOCKTNOSUPPORT -- Socket type not supported. 
  10045
  WSAEOPNOTSUPP -- Operation not supported. 
  10046
  WSAEPFNOSUPPORT -- Protocol family not supported. 
  10047
  WSAEAFNOSUPPORT -- Address family not supported by protocol family. 
  10048
 WSAEADDRINUSE -- Address is already in use. If you attempt to set up a server on a port that is already is in use, you will get this error. 
  10049
  WSAEADDRNOTAVAIL -- Cannot assign requested address. 
  10050
  WSAENETDOWN -- Network is down. 
  10051
  WSAENETUNREACH -- Network is unreachable. 
  10052
  WSAENETRESET -- Network dropped connection on reset. 
  10053
 WSAECONNABORTED -- Software caused the connection to abort. A connection that has been made was aborted, usually due to connection or protocol error. 
  10054
 WSAECONNRESET -- Connection reset by peer. This occurs when an established connection is shut down for some reason by the remote computer. 
  10055
  WSAENOBUFS -- No buffer space available. 
  10056
  WSAEISCONN -- Socket is already connected. 
  10057
  WSAENOTCONN -- Socket is not connected. 
  10058
  WSAESHUTDOWN -- Cannot send after socket shutdown. 
  10060
  WSAETIMEDOUT -- Connection timed out. 
  10061
 WSAECONNREFUSED -- Connection refused. You will usually see this error when a server refuses a connection from a client, because the server is not listening on that port. 
  10064
  WSAEHOSTDOWN -- Host is down. 
  10065
  WSAEHOSTUNREACH -- No route to host. 
  10067
  WSAEPROCLIM -- Too many processes. 
  10091
  WSASYSNOTREADY -- Network subsystem is unavailable. 
  10092
  WSAVERNOTSUPPORTED -- Unsupported version of WINSOCK.DLL. 
  10093
  WSANOTINITIALISED -- Successful WSAStartup not yet performed. TCP networking has not been initialized on your computer. 
  10094
  WSAEDISCON -- Graceful shutdown in progress. 
  11001
  WSAHOST_NOT_FOUND -- Host not found. (DNS error.) 
  11002
  WSATRY_AGAIN -- Non-authoritative host not found. Temporary DNS error. 
  11003
  WSANO_RECOVERY -- Non-recoverable error. (DNS error.) 
  11004
  WSANO_DATA -- Valid name, no data record of requested type. (DNS error).

Source: http://frontier.userland.com/stories/storyReader$173