KnowledgeBase Archive

An Archive of Early Microsoft KnowledgeBase Articles

View on GitHub

Q162514: WINSLI Thunking WinSliCleanup() Closes All Instances

Article: Q162514
Product(s): Microsoft SNA Server
Version(s): WINDOWS:2.11,2.11 SP1
Operating System(s): 
Keyword(s): kbnetworkkbbuglist
Last Modified: 13-JUN-2001

-------------------------------------------------------------------------------
The information in this article applies to:

- Microsoft SNA Server, versions 2.11, 2.11 SP1 
-------------------------------------------------------------------------------


SYMPTOMS
========

If two instances of a 16-bit SLI application are opened on a Windows NT system
using the SNA Server thunking libraries (thunking DLLs installed on Windows NT),
closing the first instance of the application results in the second instance's
closing as well.

This problem was observed using the 16-bit Wsli3270.exe included with the SNA
Serve Software Developer Kit (SDK) (included on the compact disc).

CAUSE
=====

The 16-bit-to-32-bit SLI thunking interface was not properly handling
WinSLICleanup from a 16-bit application.

RESOLUTION
==========

There are two workarounds:

- Run each instance of the 16-bit SLI application in a separate Windows NT
  virtual MS-DOS machine (VDM).

  or

- Install the 16-bit SNA Server client-server interface on Windows NT. For
  instructions on how to do this, see the following article in the Microsoft
  Knowledge Base:

  Q145885 Running 16-bit 3270/FMI Applications on Windows NT & Windows 95

A fix has also been provided; see the fix referenced below.

STATUS
======

Microsoft has confirmed this to be a problem in SNA Server versions 2.11, 2.11
Service Pack 1.


A supported fix is now available for 2.11 SP1, but has not been fully
regression-tested and should be applied only to systems experiencing this
specific problem. Unless you are severely impacted by this specific problem,
Microsoft recommends that you wait for the next Service Pack that contains this
fix. Contact Microsoft Technical Support for more information.



Additional query words:

======================================================================
Keywords          : kbnetwork kbbuglist
Technology        : kbAudDeveloper kbSNAServSearch kbSNAServ211 kbSNAServ211SP1
Version           : WINDOWS:2.11,2.11 SP1
Issue type        : kbbug
Solution Type     : kbfix

=============================================================================

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY.