This Enumeration is useful for all the NetShareGetInfo calls such as follows

        int output = NetShareGetInfo("<ServerName>", @"<ShareName>", 502, out ptr);

    static extern int NetShareGetInfo(

        int err = NetShareGetInfo(args[0], args[1], 502, out bufptr);

    Declare Unicode Function NetShareGetInfo Lib "netapi32.dll" _

public static extern int NetShareGetInfo(

Declare Unicode Function NetShareGetInfo Lib "netapi32.dll" _

  Module NetShareGetInfoAPI

  Declare Unicode Function NetShareGetInfo Lib "netapi32.dll" _

    Public Function CallAPI_NetShareGetInfo(ByVal NetSharePath as String) As String

            Result = Me.NetShareGetInfo(sapiByteServer, sapiByteShare, 2, pBuffer)

            Result = Me.NetShareGetInfo(vbEmpty, sapiByteShare, 2, pBuffer)

                Throw New Exception("NetShareGetInfo: ERROR_ACCESS_DENIED -> The user has insufficient privilege for this operation.")

                Throw New Exception("NetShareGetInfo: ERROR_NOT_ENOUGH_MEMORY -> Not enough memory")

                Throw New Exception("NetShareGetInfo: ERROR_NETWORK_ACCESS_DENIED -> Network access is denied.")

                Throw New Exception("NetShareGetInfo: ERROR_INVALID_PARAMETER Invalid parameter specified.")

                Throw New Exception("NetShareGetInfo: ERROR_BAD_NETPATH -> The network path was not found.")

                Throw New Exception("NetShareGetInfo: ERROR_INVALID_NAME -> Invalid name")

                Throw New Exception("NetShareGetInfo: ERROR_INVALID_LEVEL -> Invalid level parameter.")

                Throw New Exception("NetShareGetInfo: ERROR_MORE_DATA -> More data available, buffer too small.")

                Throw New Exception("NetShareGetInfo: NERR_NetNotStarted -> Device driver not installed.")

                Throw New Exception("NetShareGetInfo: NERR_RemoteOnly -> This operation can be performed only on a server.")

                Throw New Exception("NetShareGetInfo: NERR_ServerNotStarted -> Server service not installed.")

                Throw New Exception("NetShareGetInfo: NERR_BufTooSmall -> Buffer too small for fixed-length data.")

                Throw New Exception("NetShareGetInfo: NERR_RemoteErr -> Error encountered while remotely executing function")

                Throw New Exception("NetShareGetInfo: NERR_WkstaNotStarted -> The Workstation service is not started.")

                Throw New Exception("NetShareGetInfo: NERR_BadTransactConfig -> The server is not configured for this transaction;  IPC$ is not shared.")

                Throw New Exception("NetShareGetInfo: NERR_NetNameNotFound -> Sharename not found.")

                Throw New Exception("NetShareGetInfo: NERR_InvalidComputer -> Invalid computername specified.")

                Throw New Exception("NetShareGetInfo: Unknown " & Result)

        public static extern int NetShareGetInfo(

int Result = NetShareGetInfo("ArunGanesh", "public",502,out pBuffer);

The NetShareGetInfo function retrieves information about a particular shared resource on a server.

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/netmgmt/netmgmt/netsharegetinfo.asp

        static extern int NetShareGetInfo([MarshalAs(UnmanagedType.LPWStr)] string servername,

            int errCode = NetShareGetInfo(serverName, netName, 2, ref ptr);