The LMDFREE service removes this dslist ID from the list of dslist
IDs. The LMDLIST and LMDFREE service cannot use the dslist ID for
the remainder of the TSO session.
buf-len
A fullword fixed binary integer containing the length of the buffer
parameter.
buffer
A buffer containing the name of the service and its parameters
in the same form as they would appear in an ISPEXEC invocation for
a command invocation.