Ref: 03050009
Title: Explanation for "DOS Error XX" Messages
Date:  8/24/90

Copyright 3Com Corporation, 1991.  All rights reserved.

Occasionally, errors on 3+ or 3+Open DOS workstations will generate
messages of the form "DOS error XX," where XX is a one- or two-digit
number.  Following is a short reference to these DOS Extended error
codes:

        Code        Meaning

         1      Invalid function number
         2      File not found
         3      Path not found
         4      Too many open files (no handles left)
         5      Access denied
         6      Invalid handle
         7      Memory control blocks destroyed
         8      Insufficient memory
         9      Invalid memory block address
        10      Invalid environment
        11      Invalid format
        12      Invalid access code
        13      Invalid data
        14      Reserved
        15      Invalid drive was specified
        16      Attempt to remove the current directory
        17      Not same device
        18      No more files
        19      Attempt to write on write-protected diskette
        20      Unknown unit
        21      Drive not ready
        22      Unknown command
        23      Data error (CRC)
        24      Bad request structure length
        25      Seek error
        26      Unknown media type
        27      Sector not found
        28      Printer out of paper
        29      Write fault
        30      Read fault
        31      General failure
        32      Sharing violation
        33      Lock violation
        34      Invalid disk change
        35      FCB unavailable
        36      Sharing buffer overflow
        37-49   Reserved
        50      Network request not supported
        51      Remote computer not listening
        52      Duplicate name on network
        53      Network name not found
        54      Network busy
        55      Network device no longer exists
        56      NetBIOS command limit exceeded
        57      Network adapter hardware error
        58      Incorrect response from network
        59      Unexpected network error
        60      Incompatible remote adapter
        61      Print queue full
        62      Not enough space for print file
        63      Print file was deleted
        64      Network name was deleted
        65      Access denied
        66      Network device type incorrect
        67      Network name not found
        68      Network name limit exceeded
        69      NetBIOS session limit exceeded
        70      Temporarily paused
        71      Network request not accepted
        72      Print or disk redirection is paused
        73-79   Reserved
        80      File exists
        81      Reserved
        82      Cannot make directory entry
        83      Fail in INT 24
        84      Too many redirections
        85      Duplicate redirection
        86      Invalid password
        87      Invalid parameter
        88      Network device fault


These errors are documented in the IBM "Disk Operating System Technical
Reference" Manual, under the heading "Extended Error Codes."   The manual,
which is NOT the same as the "Disk Operating System" manual, is available
separately from IBM.

