DOCUMENT:Q101706  08-AUG-2001  [winnt]
TITLE   :MS-DOS-Based Multimedia Application Support in Windows NT
PRODUCT :Microsoft Windows NT
PROD/VER:3.1 3.5 3.51 4.0
OPER/SYS:
KEYWORDS:kb3rdparty

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The information in this article applies to:

 - Microsoft Windows NT Server version 3.1 
 - Microsoft Windows NT Workstation version 3.1 
 - Microsoft Windows NT Advanced Server, version 3.1 
 - Microsoft Windows NT Workstation versions 3.5, 3.51, 4.0 
 - Microsoft Windows NT Server versions 3.5, 3.51, 4.0 
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Typically, an MS-DOS-based multimedia application writes directly to
the I/O ports of an installed sound adapter to perform audio
functions. To support system security in Windows NT, an application
cannot write directly to the hardware ports, it must write to a VDD
(virtual device driver) that simulates the sound adapter. Currently,
Windows NT does not include any VDDs for sound adapters; multimedia
applications that perform direct I/O are not supported.

Microsoft will post new information here in the Microsoft Knowledge
Base as these modules are available to install in Windows NT.

Additional query words: prodnt 0

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Keywords          : kb3rdparty 
Technology        : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT351search kbWinNT350search kbWinNT400search kbWinNTW350 kbWinNTW350search kbWinNTW351search kbWinNTW351 kbWinNTW310 kbWinNTSsearch kbWinNTS400search kbWinNTS400 kbWinNTS351 kbWinNTS350 kbWinNTS310 kbWinNTAdvSerSearch kbWinNTAdvServ310 kbWinNTS351search kbWinNTS350search kbWinNTS310search kbWinNT310Search kbWinNTW310Search
Version           : 3.1 3.5 3.51 4.0

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