BOOL AfxSocketInit( WSADATA* lpwsaData = NULL );
Return Value
Nonzero if the function is successful; otherwise 0.
Parameters
lpwsaData
A pointer to a WSADATA structure. If lpwsaData is not equal to NULL, then the address of the WSADATA structure is filled by the call to ::WSAStartup. This function also ensures that ::WSACleanup is called for you before the application terminates.
Remarks
Call this function in your CWinApp::InitInstance override to initialize Windows Sockets.
See Also CWinApp::InitInstance