C# Definition:

     [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
    internal struct WSAData
    {
        internal Int16 version;
        internal Int16 highVersion;

        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 257)] internal String description;

        [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 129)] internal String systemStatus;

        internal Int16 maxSockets;
        internal Int16 maxUdpDg;
        internal IntPtr vendorInfo;
    }

User-Defined Field Types:

None.

Notes:

dwVendorInfo is now unused (Winsock 2.0 and above)

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