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- DOCUMENT:Q103476 22-NOV-1993 [W_NT]
- TITLE :Windows NT Terminal May Disable a COM Port for all VDMs
- PRODUCT :Windows NT
- PROD/VER:3.10
- OPER/SYS:WINDOWS
- KEYWORDS:buglist3.10 fixlist3.10.001
-
- ----------------------------------------------------------------------
- The information in this article applies to:
-
- - Microsoft Windows NT operating system version 3.1
- - Microsoft Windows NT Advanced Server version 3.1
- ----------------------------------------------------------------------
-
-
- SYMPTOMS
- ========
-
- A Windows NT Virtual MS-DOS machine (VDM) cannot open or use a COM
- port that has the error character enabled. Windows NT Terminal sets an
- error character and the COM port settings maintain settings across
- opens, so a VDM can't use any COM ports used by Terminal unless
- another program has turned off the error character.
-
- RESOLUTION
- ==========
-
- To enable a COM port used by Terminal for use with a VDM, log off and
- then log on again, or from Command Prompt, type NET STOP SERIAL
- followed by NET START SERIAL. Both of these actions will reset the COM
- ports.
-
- 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 W_NTAS
- KBCategory:
- KBSubcategory: ntap mdos
-
- =============================================================================
-
- 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.