DOCUMENT:Q100546  09-NOV-2001  [homemm]
TITLE   :MSACM 1.0: Compressed Audio Will Not Play
PRODUCT :Microsoft Home Multimedia Titles
PROD/VER::1.0,2.0,3.0,3.0a,3.1,3.11
OPER/SYS:
KEYWORDS:

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

 - Microsoft Encarta 1994 The Complete Multimedia Encyclopedia 
 - Microsoft SoundBits, Hanna-Barbera, version 2.0 
 - Microsoft SoundBits, MGM Movies, version 1.0 
 - Microsoft SoundBits, Musical Instruments, version 1.0 
 - Microsoft Musical Instruments for Windows, version 1.0 
 - Microsoft Cinemania for Windows, 1992, 1993, 1994, 1995, 1996, 1997 editions 
 - Microsoft Art Gallery for Windows, version 1.0 
 - Microsoft Multimedia Mozart for Windows, version 1.0 
 - Microsoft Multimedia Stravinsky for Windows, version 1.0 
 - Microsoft Bookshelf for Windows, 1991, 1992, 1993, 1994, 1995 editions 
 - Microsoft Dinosaurs for Windows, version 1.0 
 - Microsoft Windows Sound System 
 - the operating system: Microsoft Windows versions 3.0, 3.0a, 3.1, 3.11 
-------------------------------------------------------------------------------

SUMMARY
=======

Compressed audio will not play, or you may receive one of the following error
messages:

   No wave device that can play files in the current format is installed. Use
   the Drivers option to install the wave device.

   Multimedia device Sound failed.

NOTE: This article does not apply to Microsoft Windows 95. If you are using
Windows 95, please see the following article in the Microsoft Knowledge Base:

   Q133365 Windows 95: Troubleshooting Problems with Compressed Audio

NOTE: This article applies only to the products listed at the top of this
article, which use MSACM version 1.0. For information about MSACM version 2.0,
please see the following article in the Microsoft Knowledge Base:

   Q121132 MSACM 2.0: Compressed Audio Will Not Play

RESOLUTION
==========

These symptoms can occur if the Microsoft Audio Compression Manager (MSACM) is
not correctly installed. MSACM is used for playing compressed Sound (.wav)
files.

Use the following steps to verify that MSACM is installed correctly:

1. Check the Drivers option in Control Panel for the following installed
   driver:

      Microsoft Sound Mapper V2.00

   If you see "Microsoft Sound Mapper V2.00" listed as an installed driver, your
   system has MSACM 2.0. Please refer to the MSACM 2.0 article listed above, or
   remove "Microsoft Sound Mapper V2.00" before proceeding to the next step.

2. From MS-DOS, copy Msacm.drv and Msadpcm.acm from the Microsoft multimedia
   program's disk to the Windows System folder. For more information about how
   to perform this task in Windows, see your Windows printed documentation or
   online Help.

   If prompted, replace any currently installed versions of those files. This
   will also verify that only compatible versions of Msacm.drv and Msadpcm.acm
   are installed.

   NOTE: In Sound Bits, if the Msacm.drv or Msadpcm.acm file is corrupt, you must
   rename or delete it from the Windows System folder, then reinstall Sound Bits
   by running the Setup program. It is not possible to manually copy these files
   from the disks.

3. Use a text editor, such as Microsoft Notepad, to make the following changes
   to the System.ini file, which is located in the Windows folder.

      [Drivers]
      WaveMapper=MSACM.DRV

      [MSACM]
      Install=MSADPCM.ACM

   NOTE: Check your Windows folders and Windows System folders to ensure that
   there are not multiple copies of Msadpcm.acm or Msacm.drv.

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

If MSACM is not installed properly, simply re-installing a program that uses it
will not fix the problem. If the Setup program for the Microsoft application
finds MSACM files present on the system, it determines that MSACM has already
been installed, and will not re-install MSACM.

Additional query words: multi media multimedia multi-media MSACM MSADPCM sound kbmm mmtitles

======================================================================
Keywords          :  
Technology        : kbOSWinSearch kbHomeProdSearch _IKkbbogus kbHomeMMsearch kbZNotKeyword6 kbEncartaSearch kbZNotKeyword kbBookshelfSearch kbSoundBitsSearch kbEncartaEncycSearch kbCineManiaSearch kbWinSoundSysSearch kbMMStravinsky kbMMMozart100 kbDinosaurs100 kbMusicalInst kbSoundBits kbArtGallery kbEncartaEnCyc1994 kbOSWin310 kbOSWin311 kbOSWin300 kbOSWin300a
Version           : :1.0,2.0,3.0,3.0a,3.1,3.11

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

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 2001.