DOCUMENT:Q105995  19-NOV-1993  [W_NT]
TITLE   :AT Command May Fail Copying Files to a LAN Manager Server
PRODUCT :Windows NT
PROD/VER:3.10
OPER/SYS:WINDOWS
KEYWORDS:

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The information in this article applies to:
 
 - Microsoft Windows NT operating system version 3.1
 - Microsoft Windows NT Advanced Server version 3.1
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SYMPTOMS
========
 
If you use the AT command to schedule a batch file that copies files
to a Microsoft LAN Manager server in a different Domain, the batch
file may fail and you will receive an "Access Denied" error message.
However, if you execute the batch file from a Command Prompt, it
successfully copies the files without generating an error message.
 
Example Batch File:
 
   Net Use z: \\LMServer\Share
   copy test.txt z:\
   Net Use z: /d
 
CAUSE
=====
 
Without Domain information for the user account, using the AT command
does not succeed. This is because the account it is trying to validate
is the Administrator. The Schedule Service uses the Administrator's
rights for all access.

Without Domain information for the user account, using the AT command
does not succeed. This is because the account it is trying to validate
is the SYSTEM account. By default, the Schedule service uses the
SYSTEM account for access rights.
 
WORKAROUND
==========
 
There are two workarounds for this problem:

 - Supply Domain information for the User in the "Net Use" command,
   such as the following
 
      Net Use z: \\LMServer\share password /USER:LMDomain\guest
 
   where "guest" must be a valid account in the "LMDomain" Domain.
 
   -or-
 
 - Have the Schedule Service log on as a valid account on that
   LAN Manager server by doing the following:

   1. In the Control Panel window, choose the Services icon.

   2. Select the Schedule Service, and then choose Startup.

   3. Type the user account on the LAN Manager server (which matches a
      local account) with sufficient rights and type the appropriate
      password.

   4. Restart the service so the changes take effect.

   This option does not require changing the command line and will be
   permanent unless it is changed.

Additional reference words: 3.10 
KBCategory:
KBSubcategory: netsrv

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