DOCUMENT:Q175942  13-JUN-2001  [sna]
TITLE   :Support Windows NT Services Using SNA Windows 95 Client
PRODUCT :Microsoft SNA Server
PROD/VER:WINDOWS:3.0,3.0 SP1,3.0 SP2
OPER/SYS:
KEYWORDS:

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The information in this article applies to:

 - Microsoft SNA Server, versions 3.0, 3.0 SP1, 3.0 SP2 
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SYMPTOMS
========

A Windows NT service (running under the local system security context) is unable
to access any SNA resources when running on a Windows NT computer installed with
the SNA Server Windows 95 client software. The exact errors will vary, depending
on the service itself. However, if the Windows NT service attempts to use the
APPC or CPIC API interfaces, the following API errors are returned to the
application:

   APPC primary return code - 0xF004 (AP_COMM_SUBSYSTEM_NOT_LOADED)

   CPIC error code = 20 (PRODUCT_SPECIFIC_ERROR)

This problem occurs when you are using the Wall Data Rumba Office 5.1 AS/400
shared folders feature on a Windows NT computer, using the SNA Server Windows 95
client software. The Rumba Office AS/400 shared folders feature fails to display
any AS/400 shared folders to the user.

This problem does not occur if the SNA Server Windows NT client software is
installed on the Windows NT computer.


CAUSE
=====

The SNA Server 3.0, 3.0 Service Pack 1, and 3.0 Service Pack 2 Windows 95 client
software requires that the Windows NT application or service be run under a user
context and will not function under the Windows NT local system security
context.

WORKAROUND
==========

To work around this problem, run the SNA application under a Windows NT user
security context that can connect to the Windows NT computer or computers where
SNA Server is running. If the Windows NT service must run under the local system
context, then the SNA Server Windows NT client software should be installed
instead of the SNA Server Windows 95 client software.

STATUS
======

Microsoft has confirmed this to be a problem in the SNA Server Windows 95 client
included in SNA Server versions 3.0, 3.0 Service Pack 1, and 3.0 Service Pack
2.

This problem was corrected in the latest SNA Server version 3.0 U.S. Service
Pack. For information on obtaining this Service Pack, query on the following
word in the Microsoft Knowledge Base (without the spaces):

   S E R V P A C K

MORE INFORMATION
================

With this SNA Server Windows 95 client hotfix applied, the SNA application must
still be run under a Windows NT user context that is known to the Windows NT
computer where SNA Server is running. For example, when the application is
running on a Windows NT Workstation computer, the user must log on to a domain
user account (or trusted domain account) of the Windows NT computer where SNA
Server is running.

Additional query words:

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Keywords          :  
Technology        : kbAudDeveloper kbSNAServSearch kbSNAServ300 kbSNAServ300SP1 kbSNAServ300SP2
Version           : WINDOWS:3.0,3.0 SP1,3.0 SP2
Issue type        : kbbug
Solution Type     : kbfix

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Copyright Microsoft Corporation 2001.