Terminates the specified connection.
    On Alpha and Integrity server systems, this service accepts 64-
    bit addresses.
    Format
      SYS$ICC_DISCONNECT  conn_handle ,iosb ,[astadr] ,[astprm]
                          ,[disc_buf] ,[disc_buf_len]
    C Prototype
      int sys$icc_disconnect  (unsigned int conn_handle,
                              struct _iosb, *iosb, void
                              (*astadr)(__unknown_params),
                              __int64 astprm, char * disc_buf,
                              unsigned int disc_buf_len);
Additional Information:
explode
extract