Sound Card Drivers Are Upgraded After You Upgrade to Windows Me

When you upgrade a version of Windows to Windows Millennium Edition (Me), your sound card drivers may be updated to Windows Driver Model (WDM) drivers. This article provides information about the WDM driver upgrade process.

Your Computer Already Uses WDM Drivers

If your Windows 98-based computer is using WDM drivers before you upgrade to Windows Me, the WDM driver is updated to the latest version that is available in Windows Me. Note that Windows Me may not contain an updated WDM driver for your sound card.

Your Computer Does Not Already Use WDM Drivers

If your Windows 98-based computer is not using WDM drivers before you upgrade to Windows Me, WDM drivers are installed during the upgrade process.

NOTE: Windows Me may not contain an updated WDM driver for your sound card, and if it does not, a WDM driver is not installed.

Other Drivers

NeoMagic

If the following NeoMagic virtual device driver (.vxd) files exist, WDM drivers are installed:

NeoMagic 5:

Nmaudiov.vxd
Nm5aud.vxd
Nma2ss.vxd
Nma2ss.drv
Vymixd.vxd

NeoMagic 6:

Nmaudiod.drv
Nmaudiov.vxd

NOTE: This list may not include all of the NeoMagic vxd drivers.

Crystal Industry Standard Architecture (ISA)

If the following Crystal ISA .vxd files exist, WDM drivers are installed:

NOTE: If a version number is not included with a file name, it means all versions.

Cwbaudix.vxd 4.5.0.155
Cwbmidi.vxd 4.5.0.155
Cwbaudix.vxd 4.5.1.1998
Cwbmidi.vxd 4.5.1.1998
Cwaudio.vxd
Csfm.drv
Csmidi.vxd
Cs32ba11.drv
Cs4232ld.vxd
Cs4232ld.vxd 4.0.0.0

Aztech

If the following Aztech .vxd files exist, WDM drivers are installed:

Aztaudv.vxd 4.3.0.8
Aztaudv.vxd 4.3.0
Aztmpuv.vxd 4.2.0

Yamaha

If the following Yamaha OPL3-SAX .vxd files exist, WDM drivers are installed:

NOTE: If a version number is not included with a file name, it means all versions.

Opl3sax.sys 4.10.0.1998
Opl3sax.sys 4.10.0.2222
Opl3sax.sys 4.90
Vopl3sa.vxd
Msmpu401.vxd