Mailing List Archived Message #168

From: "Martin Iturbide" <> Full Headers
Undecoded message
Subject: Re: [Virtualized eCS] Vbox question (pc speaker)
Date: Sun, 10 Jan 2021 10:44:08 -0500
To: Virtualized eCS Users Mailing List <>

Hi Massimo

If I remember correctly, Lars made an OS/2 "hack" that will send the PC Speaker request to the audio driver.  I haven't used it but I think it was interesting for some old applications that used "DosBeep" command and you needed to get some kind of sound.

The discussion is here:,2386.0.html

The file is here:

I haven't tried it, but it may help you in some way.


El 10/1/2021 a las 10:24, Massimo S. escribió:

Il 08/01/2021 18:20, Doug Bissett ha scritto:
On 2021-01-08, at 11:41:17, Massimo S. wrote:

Hi all,

is there any way to use the PC speaker inside an eCS2.x or AOS guest VM?
WS 2019 ST as host



Well, I assume that your windows makes sound. If not, fix that first.

It works, for me. I am using VBox 6.1.16, with ArcaOS 5.0.4, under win 10.

I use the SoundBlaster 16 setting (and driver, in the guest). In the VBox settings, under Audio, set output to on. If you still don't hear anything (I don't), look in (OS/2) C:\MMOS2\MMPM2.INI (it is a text file), and change the " mastervolume=50" line to " mastervolume=90" (or even 99, it is a percentage). Reboot, and see if that helps.

You should review the information at: It tells you how to set up VBox for a ArcaOS VM. Most, if not all, applies to other versions of VBox, and OS/2 guests.

I use SoundBlaster 16, because it uses far less resources, and just plain works better than the other options. YMMV.

but i've now discovered that even the host machine do not make the classic beep, maybe the mobo has not pc speaker embedded, i must check it


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