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No sound from Firefox or IE

I have a user who is having a strange problem in which his sound works on his Windows Vista machine in every application except for his web browsers.

In Vista, when you have an open applicaiton that is playing audio, there is usually a seperate volume slider for the application, but when sound should be playing through his web browser (both IE 8 and Firefox 3), there is no volume slider in the Mixer.

We have tried uninstalling Flash for firefox and ie, uninstalling firefox, reinstalling firefox and both flash plugins to no avail.

Per a suggestion here:
We tried importing the suggested registry values, which I believe is the driver mapping, and still no go.

Made the following reg change as well per the above link:

double click on 'Auto Insert" on the right side of the box.

Change the Value from "1" to "0" and click OK. "

He tried to do a system restore but could not because it said some files were missing.

Has anyone experienced this problem? Thanks so much for your time!
Avatar of ladiesnhan

If you are using IE, you could try running with "No Add-On's". This is an option that you can select by doing so:
Click Start -> All Programs -> Accessories -> System Tools, and then click Internet Explorer (No Add-ons).
If your problem stop's with just this, you should determine which add on is the cause, by re-enabling them one at a time.

If you are using Firefox:
In Windows, click Start, open the All Programs list, and navigate to the Mozilla Firefox folder. In the Mozilla Firefox folder, select Mozilla Firefox (Safe Mode). There are options there for reseting/ and disabling your add-on's specifically.
Avatar of LeeTutor
And if the above doesn't solve it, then it might be a startup program that is causing the problem.  You could try running in Safe Mode with Networking (press the F8 function key as the computer boots up and choose that option from the menu presented), and if it now works, then:  

In Windows 98/ME/XP/Vista/Windows 7, you can choose which programs are run at startup by using the Microsoft Configuration utility:  click on the Start button, choose Run, type in MSCONFIG (doesn't need to be all capitals), click OK.  Choose the Startup tab, deselect programs to run at startup by removing the check mark.  In Windows 9x/ME, you may need to disable just about everything except Explorer, ScanRegistry and SysTray.  In Windows XP/Vista/Windows 7, just click on the button for Disable All. Reboot and see if the problem goes away.  If it does then re-enable the startup programs one (or a few) at a time, reboot, and when the problem occurs again, there is your culprit.  If you have a great number of apps to narrow down on in trying to track down the culprit, do it instead by dividing up the loading programs into successively smaller halves:  disable half of them; if the problem doesn't go away, then the offending app is within the other half, so divide that group into half; or if the problem does go away, then the disabled group contains the offender, so again narrow down by dividing in half.  

In Windows XP/Vista/Windows 7: If the problem continues to come up with all startup programs disabled, then it is probably a driver or service.  You can click on the Services tab in MSCONFIG, click on the button for Hide All Microsoft Services, leaving only third-party services displayed, then try turning them off in the same way you did for startup programs.  Finally, if third-party services are eliminated from being the cause of the problem, you could try narrowing down on Microsoft services in the same way.
Have you tried to un-install antivirus software, remove flash plugin / addon and re-install flash plugin / addon and see whether there is any sound from IE8 or Firefox 3?

Search for the msacm32.drv on your drive and if not found copy it from another computer and paste it into system 32 folder .
Also ensure and verify that the msacm32.drv driver file is existing in C:\Windows\System32 folder. If the file is missing in that location, search for other copy of msacm32.drv in the computer, or copy that file from another system as well.

Alternatively install latest vista service pack
Avatar of Vantegis


Ladiesnhan: I have run IE with no add-ins and firefox in safe mode, still reproduced the problem.

LeeTutor: I have tried booting the machine in safe mode w/ networking, but it does not start audio services. I can try disabling all startup entities, but the user is at a remote location and it is extremely difficult for me to walk him through config changes that require reboots, as I have to re-establish a remote session each time. This may be my only option though, as I'm running out of options.

Jackieman: I have not uninstalled AntiVirus software before uninstalling and reinstalling flash. Is this known to interfere?

Adaroc: I have verified that msacm32.drv is in the system32 folder.

Thank you so much for all the input. I will update with more info as it's available.
you need to uni-install anti-virus first -> restart computer -> re-install firefox -> re-install flash add-on
I had the user disable all startup entries and the problem was still present. We did not have time to disable all non-microsoft services, but we will try this next. Will update.
We disabled all startup entries and non-microsoft services, still no sound through web browser.I used the flash uninstaller tool from the Adobe website to remove flash player for ie and firefox, and reinstalled, still no go.

The only thing keeping me from uninstalling his antivirus software is that he is trying to find his license key. Once he finds it, we will try Jackieman's proposed solution.

I read on the adobe forums to try installing the following audio codecs:

Apparently these codecs have repaired this problem for other users. Anyone ever heard of this?
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I attempted all suggested troubleshooting steps with no success. Tried K-lite codec installation as recommended by another forum, and the problem was resolved.