1	Winsock version not supported
2	No WinSock present
3	app version not supported by DLL
4	Host not found or server failure
5	Non-recoverable: refused or not implemented
6	Valid name, no data record for type
7	WSA Startup not initialized
8	Network subsystem failed
9	Blocking operation in progress
10	Blocking call cancelled
11	address family not supported
12	no file descriptors available
13	no buffer space available
14	specified protocol not supported
15	protocol wrong type for this socket
16	socket type not for address family
17	descriptor is not a socket
18	socket marked as non-blocking and SO_LINGER set not 0
19	address already in use
20	connection aborted
21	connection reset
22	not connected
23	connection timed out
24	connection refused
25	host down
26	host unreachable
27	address not available