203: Title: NETWARE WORKSTATION SHELL ERRORS
 A File Server could not be found.
 Batteries are low.  Server will go down in one minute.
 (CTRL-ENTER to clear)
 Commercial power has been restored to server.
 Invalid Parameter.  Use "I" option to query shell type.
 Net Driver Crash: <driver error message>
 NetWare Workstation Shell has already been loaded.
 Network Error: <error> during <operation>.  File = <drive>:<filename>
 --------------------------- <error> messages ---------------------------
 bad directory handle
 file detached
 file in use
 File Server went down
 illegal completion code
 invalid file handle
 IO attempted to physically locked area
 IO error in directory area
 IO error network disk
 no read privilege
 no write privilege or file read only
 out of directory handles
 out of disk space
 out of dynamic work space
 ------------------------  <operation> messages  ------------------------
 CHANGE FILE MODE
 CHANGE THE CURRENT DIRECTORY
 CLOSE
 CLOSE A FILE
 CREATE
 CREATE A FILE
 CREATE A SUBDIRECTORY
 CREATE NEW FILE
 CREATE TEMP FILE
 DELETE
 DELETE A FILE
 FIND FIRST MATCHING FILE
 FIND NEXT MATCHING FILE
 GET CURRENT DIRECTORY
 GET SET A FILE DATE AND TIME
 IO CONTROL FOR DEVICES
 MOVE FILE POINTER
 OPEN
 OPEN A FILE
 RANDOM BLOCK READ
 RANDOM BLOCK WRITE
 RANDOM READ
 RANDOM WRITE
 READ FROM A FILE
 REMOVE A SUBDIRECTORY
 RENAME
 RENAME A FILE
 SEARCH FIRST
 SEARCH NEXT
 SEQUENTIAL READ
 SEQUENTIAL WRITE
 SET ATTRIBUTES
 SPOOL LST: CATCH
 UPDATE FILE SIZE
 WRITE TO A FILE
 Network Error on Server <servername>:<error>
 --------------------------  <error> messages2 --------------------------
 Attempted access to illegal or down server
 Bad local network address.
 Connection no longer valid.
 Could not route to File Server.
 Error locating router.
 Error reading from network.
 Reply invalid header.
 Reply invalid sequence number.
 Reply invalid slot.
 Reply packet lengths don't match.
 Unknown communications error code
 Network Spooler Error: (probably out of space on SYS: volume)
 Not running on top of DOS version 2.x.
 Not running on top of DOS version 3.x.
 PIPE not found in transient portion of COMMAND.COM.
 ** Program Aborted **
 Shell Error: No active File Server attachments.
 The Network is inactive or you are not connected properly.
 Too many devices defined in DOS (over approximately  32)...
 Warning: disk write error in file FILENAME.EXT
 You are on auxiliary power. Server will go down in nn minutes.