CMedia DOS Mode MPU-401 Emulator Driver Download

C-Media Drivers

The DOS Mode MPU-401 Emulator is an audio device manufactured by C-Media. This driver fixes problems with no sound or static or distorted sound, and can unlock advanced features of your audio device. Visitors have downloaded this file "" 213 times with an aggregate rating of 4 out of 5 stars based on 6 reviews. Our users report success installing this driver update on PCs running Windows XP. The total disk space used for this update is 3.7 MB.

6 Ratings (see all reviews)

Supported Models

DOS Mode MPU-401 Emulator

CMI8338/C3DX PCI Audio Device

CMI8338/C3DX PCI Audio Device.

CMI8338/C3DX PCI Audio Legacy Device

CMI8738/C3DX PCI Audio Device

CMI8738/C3DX PCI Audio Legacy Device



Supported Operating Systems

Windows 2003, Windows XP, Windows 2000, Windows NT4, Windows NT3.51, Windows ME, Windows 98SE, Windows 98, Windows 95, Windows 3.1

File Name

Uploaded By

DriverGuide (DG Staff Member) on 20-Oct-2004

Ratings & Reviews

See all CMedia DOS Mode MPU-401 Emulator ratings and reviews

Driver Contents File List

The following files are found inside the driver download file.

Name Size Date
DLSTABLE.DAT 75.3 KB 19 Oct 1998
CMSWMPU.VXD 14.5 KB 13 Apr 1999
AUDIO3D.DLL 387.1 KB 9 Apr 1999
CMAUDIO.VXD 295.5 KB 3 Sep 1999
cmpci031.inf 6.9 KB 3 Sep 1999
cmpci026.inf 6.9 KB 3 Sep 1999
SNDVOL32.CNT 392 bytes 11 Jul 1995
CMPCI95.DRV 53.8 KB 3 Sep 1999
uinstdrv.exe 41.0 KB 3 Sep 1999
CMMPUPCI.DRV 9.3 KB 13 Jul 1999
SMIDI32P.DLL 83.5 KB 30 Oct 1998
CMPCIFM.DRV 18.7 KB 28 Apr 1999
CMSMIDI.DRV 18.4 KB 13 Apr 1999
8338note.txt 5.2 KB 3 Sep 1999
8738note.txt 2.5 KB 3 Sep 1999
SNDVOL32.EXE 54.8 KB 11 Jul 1995
DLSWAVE.DAT 3.1 MB 23 Jun 1998
SMIDIPCI.DLL 30.1 KB 7 Nov 1998
cmpci032.inf 7.0 KB 3 Sep 1999
CMMPU.EXE 79.9 KB 28 Apr 1999
cmapset.exe 102.4 KB 3 Sep 1999

How to Update DOS Mode MPU-401 Emulator Device Drivers Quickly & Easily

Step 1 - Download Your Driver

To get the DOS Mode MPU-401 Emulator driver, click the green download button above. After you complete your download, move on to Step 2.

If the driver listed is not the right version or operating system, search our driver archive for the correct version. Enter CMedia DOS Mode MPU-401 Emulator into the search box above and then submit. In the results, choose the best match for your PC and operating system.

Tech Tip: If you are having trouble deciding which is the right driver, try the CMedia Driver Update Utility. It is a software utility which automatically finds and downloads the right driver.

To find the newest driver, you may need to visit the CMedia website. Most major device manufacturers update their drivers regularly.

Step 2 - Install Your Driver

Once you have downloaded your new driver, you'll need to install it. In Windows, use a built-in utility called Device Manager, which allows you to see all of the devices recognized by your system, and the drivers associated with them.

How to Open Device Manager

  • In Windows 11, Windows 10 & Windows 8.1, right-click the Start menu and select Device Manager

  • In Windows 8, swipe up from the bottom, or right-click anywhere on the desktop and choose "All Apps" -> swipe or scroll right and choose "Control Panel" (under Windows System section) -> Hardware and Sound -> Device Manager

  • In Windows 7, click Start -> Control Panel -> Hardware and Sound -> Device Manager

  • In Windows Vista, click Start -> Control Panel -> System and Maintenance -> Device Manager

  • In Windows XP, click Start -> Control Panel -> Performance and Maintenance -> System -> Hardware tab -> Device Manager button

How to Install a driver from Device Manager

  1. Locate the device and model that is having the issue and double-click on it to open the Properties dialog box.

  2. Select the Driver tab.

  3. Click the Update Driver button and follow the instructions.

In most cases, you will need to reboot your computer in order for the driver update to take effect.

Tech Tip: Driver downloads and updates come in a variety of file formats with different file extensions. For example, you may have downloaded an EXE, INF, ZIP, or SYS file. Each file type has a slighty different installation procedure to follow.

For more help, visit our Driver Support Page for step-by-step videos on how to install drivers for every file type.

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