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Q132413: PC Ext: Err Msg: Error Code=1005, Device Error=000c

Article: Q132413
Product(s): Microsoft Mail For PC Networks
Version(s): WINDOWS:3.2
Operating System(s): 
Keyword(s): 
Last Modified: 30-OCT-1999

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The information in this article applies to:

- Microsoft Mail for PC Networks, version 3.2 
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SYMPTOMS
========

External may report the following error in the SESSION.LOG when you try to send
a mail message to a local area network (LAN) connected postoffice:

  A critical error has occurred
  Error Code=1005, Device Error=000c

CAUSE
=====

This error is not an External related error. The External program is returning
an error generated by Interrupt 24h in MS-DOS (Critical-Error Handler). This
could have originated from MS-DOS or from the network shell, if a network drive
is involved.

In most cases where External gives an error code of this nature, it indicates a
problem accessing a network drive.

RESOLUTION
==========

The Error Code= value consists of four digits. The last two digits are the most
useful for identifying a problem affecting the External program. The hex values
of 00 through 1A correspond with drives A through Z (00=A, 01=B, ..., 05=F, ...,
0C=M, ..., 1A=Z).

The Device Error= value is passed from the contents of the DI register, and only
the lower byte of the DI register is valid. If the Device Error= value is not in
the following table, it may be an invalid register entry that is getting corrupt
in the process of generating the error.

Error Code      Meaning
-----------------------------------------------------------------------
00h             Write-protected disk
01h             Unknown unit
02h             Drive not ready
03h             Invalid command
04h             Data error (CRC)
05h             Bad request structure length
06h             Seek error
07h             Non-DOS disk
08h             Sector not found
09h             Printer out of paper
0ah             Write fault
0bh             Read fault
0ch             General failure
0fh             Invalid disk change (DOS 3 & later)

The three most common Device Error= values returned in External are as follows:

  Device Error=000c (General failure)
  Device Error=0002 (Drive not ready)
  Device Error=000A (Write fault)

In this case, Error Code= 1005, Device Error=000C would translate to a general
failure reading drive F:.

Additional query words: 3.20 3.20a

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Keywords          :  
Technology        : kbMailSearch kbZNotKeyword3 kbMailPCN320
Version           : WINDOWS:3.2

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