SplEnumPort Return Value - rc
rc (SPLERR) - returns
 Return
code.
NO_ERROR (0)
ERROR_ACCESS_DENIED (5)
ERROR_NOT_SUPPORTED (50)
 This request is not
supported by the network.
ERROR_BAD_NETPATH (53)
 The network path cannot
be located.
ERROR_INVALID_PARAMETER (87)
 An invalid parameter
is specified.
ERROR_INVALID_LEVEL (124)
 The level parameter
is invalid.
ERROR_MORE_DATA (234)
 Additional data is available.
NERR_NetNotStarted (2102)
 The network program
is not started.
NERR_BufTooSmall (2123)
 The API return buffer
is too small.
NERR_InvalidComputer (2351)
 The computer name
is invalid.
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