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- F.A.Q.
- Error Codes
-- Winsock Errors
-- HTTP 1.0 Errors
-- HTTP 1.1 Errors

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- Release Notes
- Year 2000

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Winsock Error Codes

WSAEINTR

10004

An action was cancelled by the programmer

WSAEBADF

10009

The program used an invalid socket handle

WSAEACCES

10013

Attempted to send to a broadcast address

WSAEFAULT

10014

Program error - invalid memory address

WSAEINVAL

10022

Program error - invalid action requested

WSAEMFILE

10024

Run out of sockets

WSAEWOULDBLOCK

10035

The socket is not ready

WSAEINPROGRESS

10036

An action is already pending

WSAEALREADY

10037

Tried to cancel an action which was already complete

WSAENOTSOCK

10038

The program used an invalid socket handle

WSAEDESTADDRREQ

10039

A destination address was not supplied

WSAEMSGSIZE

10040

A datagram was too small for data supplied

WSAEPROTOTYPE

10041

The protocol type was invalid for this socket

WSAENOPROTOOPT

10042

Unknown or unsupported socket option specified

WSAEPROTONOSUPPORT

10043

The specified protocol is not supported

WSAESOCKTNOSUPPORT

10044

The specified socket type is not supported

WSAEOPNOTSUPP

10045

Socket does not support connection-oriented service

WSAEAFNOSUPPORT

10047

Address family not supported

WSAEADDRINUSE

10048

The address is already in use

WSAEADDRNOTAVAIL

10049

The address is not available

WSAENETDOWN

10050

The connection to the Net is down

WSAENETUNREACH

10051

The Net can't be reached at this time

WSAENETRESET

10052

RAS dropped the connection

WSAECONNABORTED

10053

Timeout or similar failure

WSAECONNRESET

10054

The connection was dropped by the other end

WSAENOBUFS

10055

Winsock is out of buffer space

WSAEISCONN

10056

The socket is already connected

WSAENOTCONN

10057

The socket is not connected

WSAESHUTDOWN

10058

The socket has been shut down

WSAETIMEDOUT

10060

Time out

WSAECONNREFUSED

10061

Connection refused by remote end

WSASYSNOTREADY

10091

Network not ready

WSAVERNOTSUPPORTED

10092

Winsock version not supported

WSANOTINITIALISED

10093

Program hasn't initialised Winsock

WSAHOST_NOT_FOUND

11001

Name lookup - Authoritative Answer: Host not found

WSATRY_AGAIN

11002

Name lookup - Non-Authoritative: Host not found

WSANO_RECOVERY

11003

Name lookup - Non recoverable error

WSANO_DATA

11004

Name lookup - Valid name, no data record