KnowledgeBase Archive

An Archive of Early Microsoft KnowledgeBase Articles

View on GitHub

Q197437: Print Server Data Filter DLL causes Access Violation in SNAPRINT

Article: Q197437
Product(s): Microsoft SNA Server
Version(s): 3.0,3.0 SP1,3.0 SP2,3.0 SP3,4.0,4.0 SP1
Operating System(s): 
Keyword(s): 
Last Modified: 25-JUL-2002

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

- Microsoft SNA Server, versions 3.0, 3.0 SP1, 3.0 SP2, 3.0 SP3, 4.0, 4.0 SP1 
-------------------------------------------------------------------------------


SYMPTOMS
========

Snaprint.exe generates an Access Violation when attempting to read (void*)NULL
pointer (0x00000000) from the PrtFilterJobStart function in the Print Server
Data Filter DLL.

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

The PrtFilterJobStart function returns a unique identifier (cast to a pointer to
a void) if it wants the opportunity to filter the data for this print job. If
the user DLL returns a NULL pointer, it is indicating that it is not interested
in filtering this job. No further calls to the user DLL will be made for this
print job.

If a FilterDLL is present, it can return a value to say "I don't want to filter
this job's data." In the SNA Server SDK Documentation, this value is listed as
NULL = 0. In the code, however, the code consistently checks against
INVALID_HANDLE_VALUE = -1. The code is fixed so that now a returned value of
NULL is updated to INVALID_HANDLE_VALUE.

RESOLUTION
==========

SNA Server 3.0
--------------

To resolve this problem, obtain the latest service pack for SNA Server version
3.0. For additional information, click the following article number to view the
article in the Microsoft Knowledge Base:

  Q184307 How to Obtain the Latest SNA Server Version 3.0 Service Pack



SNA Server 4.0
--------------

This problem was corrected in the latest SNA Server version 4.0 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


STATUS
======

Microsoft has confirmed this to be a problem in Microsoft SNA Server versions
3.0 and SNA Server version 4.0. This problem was first corrected in SNA Server
3.0 Service Pack 4.

Additional query words:

======================================================================
Keywords          :  
Technology        : kbAudDeveloper kbSNAServSearch kbSNAServ300 kbSNAServ400 kbSNAServ300SP3 kbSNAServ300SP1 kbSNAServ400SP1 kbSNAServ300SP2
Version           : :3.0,3.0 SP1,3.0 SP2,3.0 SP3,4.0,4.0 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.