DOCUMENT:Q106739  08-DEC-1993  [W_NT]
TITLE   :Visual C++ 1.0: Breakpoints Not Working with DPMI Calls
PRODUCT :Windows NT
PROD/VER:3.10
OPER/SYS:WINDOWS
KEYWORDS:BUGLIST3.10 FIXLIST3.10.003

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

 - Microsoft Windows NT operating system version 3.1
 - Microsoft Windows NT Advanced Server version 3.1
----------------------------------------------------------------------


SYMPTOMS
========

Calling a DPMI function to set a debug register in Microsoft Visual
C++ succeeds but does not invoke the breakpoint.

STATUS
======

Microsoft has confirmed this to be a problem in Windows NT and
Windows NT Advanced Server version 3.1. This problem was corrected in
the latest U.S. Service Pack for Windows NT and Windows NT Advanced
Server version 3.1. For information on obtaining the Service Pack,
query on the following word in the Microsoft Knowledge Base (without
the spaces):

   S E R V P A C K

Additional reference words: 3.10
KBCategory:
KBSubCategory: 16AP

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

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.

Copyright Microsoft Corporation 1993.