;; The audio inf file for WDM core files.
[Version]
;CatalogFile=wdmaudio.cat
Signature="$CHICAGO$"
Class=MEDIA
ClassGUID={4d36e96c-e325-11ce-bfc1-08002be10318}
provider=%MSFT%
;LayoutFile=layout.inf, layout1.inf, layout2.inf
;; Device Callouts for swenumed devices
[Manufacturer]
%MfgName%=Microsoft
[Microsoft]
%WDM_KMIXER.DeviceDesc% = WDM_KMIXER, SW\{B7EAFDC0-A680-11D0-96D8-00AA0051E51D}
%WDM_SYSAUDIO.DeviceDesc% = WDM_SYSAUDIO, SW\{A7C7A5B0-5AF3-11D1-9CED-00A024BF0407}
;; NT Class Install
[ClassInstall32.NT]
Addreg=MediaReg
[MediaReg]
HKR,,,,%MediaClassName%
HKR,,Installer32,,"MmSys.Cpl,MediaClassInstaller"
HKR,,Icon,,"3004"
;; Win98 Registration of WDM Audio Drivers
[WDMAUDIO.Registration]
AddReg= WDM.AddReg, WDM_W98.AddReg
;CopyFiles= WDM.CopyFiles.Sys, WDM.CopyFiles.Drv, WDM_W98.CopyFiles.Drv
DelReg= WDM_W98.DelReg
DelFiles= WDM_W98.DelFiles.Sys, WDM_W98.DelFiles.Win
UpdateInis= WDM_W98.UpdateInis
;; WinNT Registration of WDM Audio Drivers
[WDMAUDIO.Registration.NT]
AddReg= WDM.AddReg
;CopyFiles= WDM.CopyFiles.Sys, WDM.CopyFiles.Drv
;;
;; U P D A T E R E G I S T R Y S E C T I O N
;;
;; Registry entries for both NT and Win98
[WDM.AddReg]
;; Add sndvol to the sys-tray
HKLM,Software\Microsoft\Windows\CurrentVersion\Run,SystemTray,,"SysTray.Exe"
HKLM,%KEY_IOC%\Vol,,,
HKLM,%KEY_IOC%\acm,,,
HKLM,%KEY_IOC%\Rec,,,
HKLM,%KEY_IOC%\MPlay,,,
;; Sysaudio swenum install
HKLM,%RunOnce%,"WDM_SYSAUDIO",,"rundll32.exe /N streamci.dll,StreamingDeviceSetup %WDM_SYSAUDIO.DeviceId%,%KSNAME_Filter%,%KSCATEGORY_SYSAUDIO%,%17%\WDMAUDIO.inf,WDM_SYSAUDIO.Interface.Install"
;; Kmixer swenum install
HKLM,%RunOnce%,"WDM_KMIXER",,"rundll32.exe /N streamci.dll,StreamingDeviceSetup %WDM_KMIXER.DeviceId%,%KSNAME_Filter%,%KSCATEGORY_MIXER%,%17%\WDMAUDIO.inf,WDM_KMIXER.Interface.Install"
;; Registry entries for Win98 only
[WDM_W98.AddReg]
HKR,,DevLoader,,"*ntkern,mmdevldr.vxd"
;; Add the wdmaud.sys service
HKLM,System\CurrentControlSet\Services\wdmaud,Group,,"Base"
HKLM,System\CurrentControlSet\Services\wdmaud,ImagePath,,"\SystemRoot\system32\drivers\wdmaud.sys"
HKLM,System\CurrentControlSet\Services\wdmaud,Start,1,03,00,00,00
HKLM,System\CurrentControlSet\Services\wdmaud,Type,1,01,00,00,00
HKLM,System\CurrentControlSet\Services\wdmaud,ErrorControl,1,01,00,00,00
;; Add the redbook.sys service
HKLM,System\CurrentControlSet\Services\redbook,Group,,"Base"
HKLM,System\CurrentControlSet\Services\redbook,ImagePath,,"\SystemRoot\system32\drivers\redbook.sys"
HKLM,System\CurrentControlSet\Services\redbook,Start,1,03,00,00,00
HKLM,System\CurrentControlSet\Services\redbook,Type,1,01,00,00,00
HKLM,System\CurrentControlSet\Services\redbook,ErrorControl,1,01,00,00,00
;; Add the stuff to make redbook work.
HKLM,System\CurrentControlSet\control\MediaResources\MediaExtensions\shellx\SimpleProperties\WDMAudio,ShellName,,"Digital Audio"
;; Add the sbemul.sys service
HKLM,System\CurrentControlSet\Services\sbemul,Group,,"Base"
HKLM,System\CurrentControlSet\Services\sbemul,ImagePath,,"\SystemRoot\system32\drivers\sbemul.sys"
HKLM,System\CurrentControlSet\Services\sbemul,Start,1,03,00,00,00
HKLM,System\CurrentControlSet\Services\sbemul,Type,1,01,00,00,00
HKLM,System\CurrentControlSet\Services\sbemul,ErrorControl,1,01,00,00,00
;; Add the swmidi.sys service
HKLM,System\CurrentControlSet\Services\swmidi,Group,,"Base"
HKLM,System\CurrentControlSet\Services\swmidi,ImagePath,,"\SystemRoot\system32\drivers\swmidi.sys"
HKLM,System\CurrentControlSet\Services\swmidi,Start,1,03,00,00,00
HKLM,System\CurrentControlSet\Services\swmidi,Type,1,01,00,00,00
HKLM,System\CurrentControlSet\Services\swmidi,ErrorControl,1,01,00,00,00
[WDM_W98.DelReg]
HKLM,System\CurrentControlSet\Services\mmsysmap
HKLM,System\CurrentControlSet\Services\kmixer
HKLM,System\CurrentControlSet\Services\sysaudio
;;
;; F I L E C O P Y S E C T I O N
;;
[DestinationDirs]
WDM.CopyFiles.Drv = 10,system32\drivers ; %SystemRoot%\system32\drivers
WDM.CopyFiles.Sys = 11 ; %SystemRoot%\system
WDM_W98.DelFiles.Sys = 11 ; %SystemRoot%\system
WDM_W98.DelFiles.Win = 10 ; WINDOWS
WDM_W98.CopyFiles.Drv = 10,system32\drivers ; %SystemRoot%\system32\drivers
MS_MPU401.CopyFiles = 10,system32\drivers ; %SystemRoot%\system32\drivers
WDM_SYSAUDIO.CopyFiles = 10,system32\drivers
WDM_KMIXER.CopyFiles = 10,system32\drivers
;; copied to system32\drivers
[WDM.CopyFiles.Drv]
wdmaud.sys
swmidi.sys
gm.dls,gm16.dls
portcls.sys
stream.sys
[WDM_W98.CopyFiles.Drv]
redbook.sys
sbemul.sys
;; copied to system
[WDM.CopyFiles.Sys]
wdmaud.drv
ksuser.dll
;;
;; D E L E T E F I L E S S E C T I O N
;;
;; Delete from the system directory
[WDM_W98.DelFiles.Sys]
kmixer.sys
ks.sys
wdmaud.sys
swmidi.sys
sysaudio.sys
redbook.sys
sbemul.sys
mssb16.sys
USBAUDIO.sys
STREAM.sys
portcls.sys
gm.dls
gm16.dls
;; Delete from the 'windows' directory
[WDM_W98.DelFiles.Win]
WDMAUD.DRV
;;
;; U P D A T E I N I S S E C T I O N
;;
[WDM_W98.UpdateInis]
system.ini,drivers,"wave*=wdmaud.drv",,1
system.ini,drivers,"midi*=wdmaud.drv",,1
system.ini,drivers,"mixer*=wdmaud.drv",,1
;; MPU401 Install Section can be called by OEM's to install MS MPU401 driver
[WDMAUDIO.MPU401]
;CopyFiles=MS_MPU401.CopyFiles
AddReg=MS_MPU401.AddReg
UpdateInis=MS_MPU401.UpdateInis
[WDMAUDIO.MPU401.NT]
;CopyFiles=MS_MPU401.CopyFiles
AddReg=MS_MPU401.AddReg
[MS_MPU401.CopyFiles]
msmpu401.sys
[MS_MPU401.AddReg]
HKR,,AssociatedFilters,,"wdmaud"
HKR,,Driver,,msmpu401.sys
HKR,,NTMPDriver,,msmpu401.sys
HKR,Drivers,SubClasses,,"midi"
HKR,Drivers\midi\wdmaud.drv, Driver,,wdmaud.drv
HKR,Drivers\midi\wdmaud.drv, Description,,%MS_MPU401%
[MS_MPU401.UpdateInis]
system.ini,drivers,"midi*=mpu401.drv",,1
system.ini,drivers,"midi*=rdmpu401.drv",,1
system.ini,drivers,"midi*=mm16n.drv",,1
system.ini,drivers,"midi*=mm16c.drv",,1
system.ini,drivers,"midi*=mm16w.drv",,1
;; FDMA install section
[WDMAUDIO.FDMA]
AddReg=FDMA.AddReg
[FDMA.AddReg]
;; Use FDMA
HKR,,UseFDMA,1,01,00,00,00
[WDMAUDIO.NOFDMA]
AddReg=NOFDMA.AddReg
[NOFDMA.AddReg]
;; Use FDMA
HKR,,UseFDMA,1,00,00,00,00
[WDMAUDIO.FDMA.NT]
AddReg=FDMA.AddReg.NT
[FDMA.AddReg.NT]
;; SWEnum Installation Sections
[WDM_SYSAUDIO.Interface.Install]
AddReg=WDM_SYSAUDIO.Interface.AddReg
[WDM_SYSAUDIO.Interface.AddReg]
HKR,,CLSID,,%Proxy.CLSID%
HKR,,FriendlyName,,%WDM_SYSAUDIO.FriendlyName%
[WDM_SYSAUDIO]
CopyFiles = WDM_SYSAUDIO.CopyFiles
AddReg = WDM_SYSAUDIO.AddReg
KnownFiles= WDM_SYSAUDIO.KnownFiles
[WDM_SYSAUDIO.NT]
CopyFiles = WDM_SYSAUDIO.CopyFiles
; nothing special to add to registry
[WDM_SYSAUDIO.KnownFiles]
sysaudio.sys=safe
[WDM_SYSAUDIO.CopyFiles]
sysaudio.sys
[WDM_SYSAUDIO.AddReg]
HKR,,DevLoader,,*NTKERN
HKR,,NTMPDriver,,SYSAUDIO.sys
[WDM_SYSAUDIO.NT.Services]
AddService = sysaudio,0x00000002, sysaudio_Service_Inst
[sysaudio_Service_Inst]
DisplayName = %sysaudio.SvcDesc%
ServiceType = 1 ; SERVICE_KERNEL_DRIVER
StartType = 3 ; SERVICE_DEMAND_START
ErrorControl = 1 ; SERVICE_ERROR_NORMAL
ServiceBinary = %10%\system32\drivers\sysaudio.sys
[WDM_KMIXER.Interface.Install]
AddReg=WDM_KMIXER.Interface.AddReg
[WDM_KMIXER.Interface.AddReg]
HKR,,CLSID,,%Proxy.CLSID%
HKR,,FriendlyName,,%WDM_KMIXER.FriendlyName%
[WDM_KMIXER]
CopyFiles = WDM_KMIXER.CopyFiles
AddReg = WDM_KMIXER.AddReg
KnownFiles = WDM_KMIXER.KnownFiles
[WDM_KMIXER.NT]
CopyFiles = WDM_KMIXER.CopyFiles
; nothing special to add to registry
[WDM_KMIXER.KnownFiles]
kmixer.sys=safe
[WDM_KMIXER.CopyFiles]
kmixer.sys
[WDM_KMIXER.AddReg]
HKR,,DevLoader,,*NTKERN
HKR,,NTMPDriver,,KMIXER.sys
[WDM_KMIXER.NT.Services]
AddService = kmixer, 0x00000002, kmixer_Service_Inst
[kmixer_Service_Inst]
DisplayName = %kmixer.SvcDesc%
ServiceType = 1 ; SERVICE_KERNEL_DRIVER
StartType = 3 ; SERVICE_DEMAND_START
ErrorControl = 1 ; SERVICE_ERROR_NORMAL
ServiceBinary = %10%\system32\drivers\kmixer.sys
[Strings]
;Non-localized strings
;; ???? These keys weren't used anywhere. Delete?
;;KEY_WARNVER="SYSTEM\CurrentControlSet\Control\SessionManager\WarnVerDLLs"
;;KEY_CHKVER="SYSTEM\CurrentControlSet\Control\SessionManager\CheckVerDLLs"
;;KEY_FIL="SYSTEM\CurrentControlSet\Control\MediaResources\FilterList"
KEY_IOC="SYSTEM\CurrentControlSet\Control\MediaResources\InstallOptionalComponents"
MSFT="Microsoft"
MfgName="Microsoft"
RunOnce = "SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce"
Proxy.CLSID = "{17CCA71B-ECD7-11D0-B908-00A0C9223196}"
KSNAME_Filter = "{9B365890-165F-11D0-A195-0020AFD156E4}"
WDM_SYSAUDIO.DeviceId = "{A7C7A5B0-5AF3-11D1-9CED-00A024BF0407}"
KSCATEGORY_SYSAUDIO = "{A7C7A5B1-5AF3-11D1-9CED-00A024BF0407}"
WDM_KMIXER.DeviceId = "{B7EAFDC0-A680-11D0-96D8-00AA0051E51D}"
KSCATEGORY_MIXER = "{AD809C00-7B88-11D0-A5D6-28DB04C10000}"
;Localized strings
MediaClassName="Sound, video and game controllers"
MS_MPU401="MPU401"
WDM_SYSAUDIO.DeviceDesc = "Microsoft Kernel System Renderer"
WDM_SYSAUDIO.FriendlyName = "Microsoft Kernel System Renderer"
WDM_KMIXER.DeviceDesc = "Microsoft Kernel Audio Mixer"
WDM_KMIXER.FriendlyName = "Microsoft Kernel Audio Mixer"
sysaudio.SvcDesc = "Microsoft System Audio Device"
kmixer.SvcDesc = "Microsoft Kernel Wave Audio Mixer"
Download Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.
Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.