Wavemapper – msacm32.drv Adobe Flash Player No Sound Windows 7, Vista

Quite frequently, Windows users encounter the problem in which the system does not play the audio sounds – particularly when trying to playback Flash based media files. Moreover, this typically occurs after you have recently installed the latest version of Adobe Flash Payer (say version 9 or 10). This problem explicitly manifests itself when you are attempting to watch Flash videos on the internet – on sites such as YouTube, MetaCafe, Daily Motion, MySpace Video, Google Video, etc. In all these cases, what you will typically find is that, while the video is running perfectly, the audio fails to run.

There is a general resolution to this problem that involves a registry fix – however it is perfectly plausible that you might be uncomfortable tweaking those treacherous registry keys. In that case, the good news is that there is a far simpler trick that lets you fix this Flash no-sound problem at the drop of a hat.

Flash No-sound Wavemapper Solution

  1. Launch Registry Editor by typing ‘regedit’ at Run command
  2. Navigate to the following registry key:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Drivers32
  3. On the right pane, and check for existence of “wavemapper” registry subkey. If it is not there, then create a new string value named “wavemapper”, and give the entry value “msacm32.drv”.If wavemapper entry is already there, ensure that its value data is “msacm32.drv”.

Also, you have to ensure, and verify, that the msacm32.drv driver file exists in C:\Windows\System32 folder. If the file is missing in that location, search for another copy of msacm32.drv on your computer, or copy that file from another Windows PC.