MS-DOS-Based Multimedia Application Support in Windows NT
Article ID: 101706
Article Last Modified on 11/1/2006
APPLIES TO
- Microsoft Windows NT Advanced Server 3.1
- Microsoft Windows NT Workstation 3.1
- Microsoft Windows NT Advanced Server 3.1
- Microsoft Windows NT Workstation 3.5
- Microsoft Windows NT Workstation 3.51
- Microsoft Windows NT Workstation 4.0 Developer Edition
- Microsoft Windows NT Server 3.5
- Microsoft Windows NT Server 3.51
- Microsoft Windows NT Server 4.0 Standard Edition
This article was previously published under Q101706
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
Keywords: kb3rdparty KB101706