; ************************************************************
; * Wolfson Microelectronics WDM Device Driver
; * for Intel(r) 82801AA/AB AC'97 Audio Controller
; *
; * Driver Installation File
; *
; * Date: April 16, 1999
; * Version : Evaluation Only
; * NOTE: This document refers to systems containing the
; * following Intel chipsets:
; * Intel(r) 810 Chipset
; * Intel(r) 820 Chipset
; *
; ************************************************************
[Version]
Signature="$CHICAGO$"
Class=MEDIA
ClassGUID={4d36e96c-e325-11ce-bfc1-08002be10318}
provider=%WML%
[Manufacturer]
%MfgName%=WolfsonMicroelectronics
[WolfsonMicroelectronics]
%*WDM_ICHAUD.DeviceDesc%=WDM_ICHAUD,, pci\ven_8086&dev_2415
%*WDM_ICHAUD.DeviceDesc%=WDM_ICHAUD,, pci\ven_8086&dev_2425
[DestinationDirs]
WDM_ICHAUD.CopyList = 10,system32\drivers ; %SystemRoot%\system32\drivers
WDMAUD.CopyList = 11 ; %SystemRoot%\system
system.DelFiles = 11 ; %SystemRoot%\system
[WDM_ICHAUD]
AlsoInstall=ks.registration(ks.inf),wdmaudio.registration(wdmaudio.inf)
CopyFiles=WDM_ICHAUD.CopyList
DelFiles=system.DelFiles
AddReg=WDM_ICHAUD.AddReg, WDM_ICHAUD_GUID.AddReg
[WDM_ICHAUD.AddReg]
HKR,,AssociatedFilters,,"wdmaud,swmidi,redbook"
HKR,,Driver,,ichaudio.sys
HKR,,NTMPDriver,,"ichaudio.sys,sbemul.sys"
HKR,Drivers,SubClasses,,"wave,midi,mixer"
HKR,Drivers\wave\wdmaud.drv, Driver,,wdmaud.drv
HKR,Drivers\midi\wdmaud.drv, Driver,,wdmaud.drv
HKR,Drivers\mixer\wdmaud.drv,Driver,,wdmaud.drv
HKR,Drivers\wave\wdmaud.drv, Description,,%*WDM_ICHAUD.DeviceDesc%
HKR,Drivers\midi\wdmaud.drv, Description,,%WDM_MIDI%
HKR,Drivers\mixer\wdmaud.drv,Description,,%*WDM_ICHAUD.DeviceDesc%
[WDM_ICHAUD_GUID.AddReg]
HKLM,%MediaCategories%\%ICHGUID.PcBeep%,Name,,%ICHPin.PcBeep%
HKLM,%MediaCategories%\%ICHGUID.PcBeep%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.Phone%,Name,,%ICHPin.Phone%
HKLM,%MediaCategories%\%ICHGUID.Phone%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.Mic1%,Name,,%ICHPin.Mic1%
HKLM,%MediaCategories%\%ICHGUID.Mic1%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.Mic2%,Name,,%ICHPin.Mic2%
HKLM,%MediaCategories%\%ICHGUID.Mic2%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.LineIn%,Name,,%ICHPin.LineIn%
HKLM,%MediaCategories%\%ICHGUID.LineIn%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.CDPlayer%,Name,,%ICHPin.CDPlayer%
HKLM,%MediaCategories%\%ICHGUID.CDPlayer%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.Video%,Name,,%ICHPin.Video%
HKLM,%MediaCategories%\%ICHGUID.Video%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.Aux%,Name,,%ICHPin.Aux%
HKLM,%MediaCategories%\%ICHGUID.Aux%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.LineOut%,Name,,%ICHPin.LineOut%
HKLM,%MediaCategories%\%ICHGUID.LineOut%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.Headphone%,Name,,%ICHPin.Headphone%
HKLM,%MediaCategories%\%ICHGUID.Headphone%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.WM3D%,Name,,%ICHPin.WM3D%
HKLM,%MediaCategories%\%ICHGUID.WM3D%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.MonoOut%,Name,,%ICHPin.MonoOut%
HKLM,%MediaCategories%\%ICHGUID.MonoOut%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.Capture%,Name,,%ICHPin.Capture%
HKLM,%MediaCategories%\%ICHGUID.Capture%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.WaveOutVol%,Name,,%ICHControl.WaveOutVol%
HKLM,%MediaCategories%\%ICHGUID.WaveOutVol%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.WaveOutMute%,Name,,%ICHControl.WaveOutMute%
HKLM,%MediaCategories%\%ICHGUID.WaveOutMute%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.PCBeepVol%,Name,,%ICHControl.PCBeepVol%
HKLM,%MediaCategories%\%ICHGUID.PCBeepVol%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.PCBeepMute%,Name,,%ICHControl.PCBeepMute%
HKLM,%MediaCategories%\%ICHGUID.PCBeepMute%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.PhoneVol%,Name,,%ICHControl.PhoneVol%
HKLM,%MediaCategories%\%ICHGUID.PhoneVol%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.PhoneMute%,Name,,%ICHControl.PhoneMute%
HKLM,%MediaCategories%\%ICHGUID.PhoneMute%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.LineInVol%,Name,,%ICHControl.LineInVol%
HKLM,%MediaCategories%\%ICHGUID.LineInVol%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.LineInMute%,Name,,%ICHControl.LineInMute%
HKLM,%MediaCategories%\%ICHGUID.LineInMute%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.VIDVol%,Name,,%ICHControl.VIDVol%
HKLM,%MediaCategories%\%ICHGUID.VIDVol%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.VIDMute%,Name,,%ICHControl.VIDMute%
HKLM,%MediaCategories%\%ICHGUID.VIDMute%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.AUXVol%,Name,,%ICHControl.AUXVol%
HKLM,%MediaCategories%\%ICHGUID.AUXVol%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.AUXMute%,Name,,%ICHControl.AUXMute%
HKLM,%MediaCategories%\%ICHGUID.AUXMute%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.20DB%,Name,,%ICHControl.20DB%
HKLM,%MediaCategories%\%ICHGUID.20DB%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.MIC1Vol%,Name,,%ICHControl.Mic1Vol%
HKLM,%MediaCategories%\%ICHGUID.MIC1Vol%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.MIC1Mute%,Name,,%ICHControl.MIC1Mute%
HKLM,%MediaCategories%\%ICHGUID.MIC1Mute%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.CDVol%,Name,,%ICHControl.CDVol%
HKLM,%MediaCategories%\%ICHGUID.CDVol%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.CDMute%,Name,,%ICHControl.CDMute%
HKLM,%MediaCategories%\%ICHGUID.CDMute%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.3DVol%,Name,,%ICHControl.3DVol%
HKLM,%MediaCategories%\%ICHGUID.3DVol%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.3DMute%,Name,,%ICHControl.3DMute%
HKLM,%MediaCategories%\%ICHGUID.3DMute%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.3DBypass%,Name,,%ICHControl.3DBypass%
HKLM,%MediaCategories%\%ICHGUID.3DBypass%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.LineOutMix%,Name,,%ICHControl.LineOutMix%
HKLM,%MediaCategories%\%ICHGUID.LineOutMix%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.MasterVol%,Name,,%ICHControl.MasterVol%
HKLM,%MediaCategories%\%ICHGUID.MasterVol%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.MasterMute%,Name,,%ICHControl.MasterMute%
HKLM,%MediaCategories%\%ICHGUID.MasterMute%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.HeadphoneVol%,Name,,%ICHControl.HeadphoneVol%
HKLM,%MediaCategories%\%ICHGUID.HeadphoneVol%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.HeadphoneMute%,Name,,%ICHControl.HeadphoneMute%
HKLM,%MediaCategories%\%ICHGUID.HeadphoneMute%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.MonoSum%,Name,,%ICHControl.MonoSum%
HKLM,%MediaCategories%\%ICHGUID.MonoSum%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.MonoVol%,Name,,%ICHControl.MonoVol%
HKLM,%MediaCategories%\%ICHGUID.MonoVol%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.MonoMute%,Name,,%ICHControl.MonoMute%
HKLM,%MediaCategories%\%ICHGUID.MonoMute%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.WaveInSum%,Name,,%ICHControl.WaveInSum%
HKLM,%MediaCategories%\%ICHGUID.WaveInSum%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.WaveInMux%,Name,,%ICHControl.WaveInMux%
HKLM,%MediaCategories%\%ICHGUID.WaveInMux%,Display,1,00,00,00,00
HKLM,%MediaCategories%\%ICHGUID.MicSelect%,Name,,%ICHControl.MicSelect%
HKLM,%MediaCategories%\%ICHGUID.MicSelect%,Display,1,00,00,00,00
;; Delete these files from
;; the system directory
[system.DelFiles]
ichaudio.sys
;; copy these files into the
;; system32\drivers directory
[WDM_ICHAUD.CopyList]
ichaudio.sys
[WDM_ICHAUD.Interfaces]
AddInterface=%KSCATEGORY_AUDIO%,%KSNAME_Wave%, ICHAud.Interface.Wave
AddInterface=%KSCATEGORY_RENDER%,%KSNAME_Wave%, ICHAud.Interface.Wave
AddInterface=%KSCATEGORY_CAPTURE%,%KSNAME_Wave%, ICHAud.Interface.Wave
AddInterface=%KSCATEGORY_AUDIO%,%KSNAME_Topology%, ICHAud.Interface.Topology
AddInterface=%KSCATEGORY_TOPOLOGY%,%KSNAME_Topology%, ICHAud.Interface.Topology
[ICHAud.Interface.Wave]
AddReg=ICHAud.Interface.Wave.AddReg
[ICHAud.Interface.Wave.AddReg]
HKR,,FriendlyName,,%ICHAud.Wave.szPname%
HKR,,CLSID,,%Proxy.CLSID%
[ICHAud.Interface.Topology]
AddReg=ICHAud.Interface.Topo.AddReg
;;must use topo because topology is too long
[ICHAud.Interface.Topo.AddReg]
HKR,,FriendlyName,,%ICHAud.Topology.szPname%
;;**************** NT Install ****************
[STUB_DEVICE.NT]
[STUB_DEVICE.NT.SERVICES]
AddService=,0x2
[WDM_ICHAUD.NT]
Include=ks.inf, wdmaudio.inf
Needs=KS.Registration, WDMAUDIO.Registration.NT
CopyFiles=WDM_ICHAUD.CopyList
AddReg=WDM_ICHAUD.AddReg, WDM_ICHAUD_GUID.AddReg
[WDM_ICHAUD.NT.Interfaces]
AddInterface=%KSCATEGORY_AUDIO%,%KSNAME_Wave%, ICHAud.Interface.Wave
AddInterface=%KSCATEGORY_RENDER%,%KSNAME_Wave%, ICHAud.Interface.Wave
AddInterface=%KSCATEGORY_CAPTURE%,%KSNAME_Wave%, ICHAud.Interface.Wave
AddInterface=%KSCATEGORY_AUDIO%,%KSNAME_Topology%,ICHAud.Interface.Topology
AddInterface=%KSCATEGORY_TOPOLOGY%,%KSNAME_Topology%,ICHAud.Interface.Topology
[WDM_ICHAUD.NT.Services]
AddService = wdmaud, 0x00000000, wdmaud_Service_Inst
AddService = WDM_ICHAUD,0x00000002, WDM_ICHAUD_Service_Inst
[wdmaud_Service_Inst]
DisplayName = %wdmaud.SvcDesc%
ServiceType = 1 ; SERVICE_KERNEL_DRIVER
StartType = 1 ; SERVICE_SYSTEM_START
ErrorControl = 1 ; SERVICE_ERROR_NORMAL
ServiceBinary = %10%\system32\drivers\wdmaud.sys
[swmidi_Service_Inst]
DisplayName = %swmidi.SvcDesc%
ServiceType = 1 ; SERVICE_KERNEL_DRIVER
StartType = 3 ; SERVICE_DEMAND_START
ErrorControl = 1 ; SERVICE_ERROR_NORMAL
ServiceBinary = %10%\system32\drivers\swmidi.sys
[WDM_ICHAUD_Service_Inst]
DisplayName = %WDM_ICHAUD.SvcDesc%
ServiceType = 1 ; SERVICE_KERNEL_DRIVER
StartType = 3 ; SERVICE_DEMAND_START
ErrorControl = 1 ; SERVICE_ERROR_NORMAL
ServiceBinary = %10%\system32\drivers\ichaudio.sys
[Strings]
;; ICH Devices friendly names (GUIDS non-localizeable)
ICHGUID.PcBeep ="{298AA361-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.Phone ="{298AA362-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.Mic1 ="{298AA363-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.Mic2 ="{298AA364-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.LineIn ="{298AA365-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.CDPlayer ="{298AA366-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.Video ="{298AA367-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.Aux ="{298AA368-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.LineOut ="{298AA369-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.WM3D ="{298AA36A-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.MonoOut ="{298AA36B-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.Headphone ="{298AA36C-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.Capture ="{298AA392-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.WaveOutVol ="{298AA374-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.WaveOutMute ="{298AA375-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.PCBeepVol ="{298AA376-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.PCBeepMute ="{298AA377-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.PhoneVol ="{298AA378-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.PhoneMute ="{298AA379-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.LineInVol ="{298AA37A-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.LineInMute ="{298AA37B-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.VIDVol ="{298AA37C-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.VIDMute ="{298AA37D-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.AUXVol ="{298AA37E-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.AUXMute ="{298AA37F-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.20DB ="{298AA380-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.MIC1Vol ="{298AA381-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.MIC1Mute ="{298AA382-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.CDVol ="{298AA383-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.CDMute ="{298AA384-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.3DVol ="{298AA385-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.3DMute ="{298AA386-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.3DBypass ="{298AA387-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.LineOutMix ="{298AA388-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.MasterVol ="{298AA389-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.MasterMute ="{298AA38A-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.HeadphoneVol ="{298AA36D-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.HeadphoneMute ="{298AA36E-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.MonoSum ="{298AA38B-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.MonoVol ="{298AA38C-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.MonoMute ="{298AA38D-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.WaveInSum ="{298AA38E-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.WaveInMux ="{298AA38F-643D-11D2-9BDC-00A0C9696B7D}"
ICHGUID.MicSelect ="{298AA390-643D-11D2-9BDC-00A0C9696B7D}"
;; friendly names (localizeable)
;Sources
ICHPin.PcBeep ="PC Beep"
ICHPin.Phone ="Phone"
ICHPin.Mic1 ="Microphone"
ICHPin.Mic2 ="Mic 2"
ICHPin.LineIn ="Line In"
ICHPin.CDPlayer ="CD Input"
ICHPin.Video ="Video"
ICHPin.Aux ="Aux"
ICHPin.LineOut ="Volume Control"
ICHPin.WM3D ="WM 3D"
ICHPin.MonoOut ="Mono Out"
ICHPin.Capture ="Recording Control"
ICHPin.Headphone ="Headphone"
;Controls (Controls as related to Sources)
ICHControl.WaveOutVol ="WaveOut Volume"
ICHControl.WaveOutMute ="WaveOut Mute"
ICHControl.PCBeepVol ="PCBeep Volume"
ICHControl.PCBeepMute ="PCBeep Mute"
ICHControl.PhoneVol ="Phone Volume"
ICHControl.PhoneMute ="Phone Mute"
ICHControl.LineInVol ="LineIn Volume"
ICHControl.LineInMute ="LineIn Mute"
ICHControl.VIDVol ="Video Volume"
ICHControl.VIDMute ="Video Mute"
ICHControl.AUXVol ="AUX Volume"
ICHControl.AUXMute ="AUX Mute"
ICHControl.20DB ="20db Gain"
ICHControl.MIC1Vol ="Mic1 Volume"
ICHControl.MIC1Mute ="Mic1 Mute"
ICHControl.CDVol ="CD Volume"
ICHControl.CDMute ="CD Mute"
ICHControl.3DVol ="WM 3D Level"
ICHControl.3DMute ="WM 3D Mute"
ICHControl.3DBypass ="WM 3D Bypass"
ICHControl.LineOutMix ="Stereo Mix"
ICHControl.MasterVol ="Master Volume"
ICHControl.MasterMute ="Master Mute"
ICHControl.HeadphoneVol ="Headphone Volume"
ICHControl.HeadphoneMute ="Headphone Mute"
ICHControl.MonoSum ="Mono Mix"
ICHControl.MonoVol ="Mono Volume"
ICHControl.MonoMute ="Mono Mute"
ICHControl.WaveInSum ="WaveIn Sum"
ICHControl.WaveInMux ="WaveIn Mux"
ICHControl.MicSelect ="Mic1/Mic2 Select"
MediaCategories="SYSTEM\CurrentControlSet\Control\MediaCategories"
WDM_MIDI="WDM-based Device"
Proxy.CLSID="{17CCA71B-ECD7-11D0-B908-00A0C9223196}"
KSCATEGORY_AUDIO="{6994AD04-93EF-11D0-A3CC-00A0C9223196}"
KSCATEGORY_RENDER="{65E8773E-8F56-11D0-A3B9-00A0C9223196}"
KSCATEGORY_CAPTURE="{65E8773D-8F56-11D0-A3B9-00A0C9223196}"
KSCATEGORY_TOPOLOGY="{DDA54A40-1E4C-11D1-A050-405705C10000}"
KSNAME_Wave="Wave"
KSNAME_Topology="Topology"
WML="Wolfson Microelectronics"
MfgName="Wolfson Microelectronics, Ltd."
*WDM_ICHAUD.DeviceDesc="Intel(R) 82801AA/AB AC'97 Audio Controller"
ICHAud.Wave.szPname="Wolfson AC'97 Audio Controller"
ICHAud.Topology.szPname="Wolfson AC'97 Audio Controller"
wdmaud.SvcDesc = "Microsoft WDM Virtual Wave Driver"
swmidi.SvcDesc = "Microsoft Software Synthesizer"
WDM_ICHAUD.SvcDesc = "Intel(R) 82801AA/AB AC'97 Audio Controller"
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.