1. CH341SER.zip Driver
  2. CH341SER.INF File Contents

CH341SER.INF Driver File Contents (CH341SER.zip)

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CH341SER.INF Driver Update Utility 
; CH341SER.INF
; Driver for CH341 (USB=>SERIAL chip) V3.4
; WDM&VXD for Windows 98/Me/2000/XP/Server2003/Vista/64bit Vista/Server2008/Win7/64bit Win7
; Copyright (C) W.ch 2001-2014
;

[Version]
Signature = "$Chicago$"
Class     = Ports
ClassGuid = {4D36E978-E325-11CE-BFC1-08002BE10318}
Provider  = %WinChipHead%
DriverVer = 08/08/2014, 3.4.2014.08
CatalogFile = CH341SER.CAT

[ControlFlags]
ExcludeFromSelect = USB\VID_1A86&PID_7523
ExcludeFromSelect = USB\VID_1A86&PID_5523
ExcludeFromSelect = USB\VID_4348&PID_5523
ExcludeFromSelect = USB\VID_4348&PID_5523&REV_0250
ExcludeFromSelect = USBSERPORT\SER5523
ExcludeFromSelect = CH341PORT\SER5523

[Manufacturer]
%WinChipHead% = WinChipHead,NT,NTamd64,NTia64

[WinChipHead]
%CH340SER.DeviceDesc% = CH341SER_Install, USB\VID_1A86&PID_7523
%CH341ASER.DeviceDesc% = CH341SER_Install, USB\VID_1A86&PID_5523
%CH341SER.DeviceDesc% = CH341SER_Install, USB\VID_4348&PID_5523
%CH340SER.DeviceDesc% = CH341SER_Install, USB\VID_4348&PID_5523&REV_0250
%CH341S98.DeviceDesc% = CH341S98_Install, USBSERPORT\SER5523
%CH341S98.DeviceDesc% = CH341S98_Install, CH341PORT\SER5523

[WinChipHead.NT]
%CH340SER.DeviceDesc% = CH341SER_Install.NT, USB\VID_1A86&PID_7523
%CH341ASER.DeviceDesc% = CH341SER_Install.NT, USB\VID_1A86&PID_5523
%CH341SER.DeviceDesc% = CH341SER_Install.NT, USB\VID_4348&PID_5523
%CH340SER.DeviceDesc% = CH341SER_Install.NT, USB\VID_4348&PID_5523&REV_0250

[WinChipHead.NTamd64]
%CH340SER.DeviceDesc% = CH341SER_Inst.NTamd64, USB\VID_1A86&PID_7523
%CH341ASER.DeviceDesc% = CH341SER_Inst.NTamd64, USB\VID_1A86&PID_5523
%CH341SER.DeviceDesc% = CH341SER_Inst.NTamd64, USB\VID_4348&PID_5523
%CH340SER.DeviceDesc% = CH341SER_Inst.NTamd64, USB\VID_4348&PID_5523&REV_0250

[WinChipHead.NTia64]
%CH340SER.DeviceDesc% = CH341SER_Inst.NTia64, USB\VID_1A86&PID_7523
%CH341ASER.DeviceDesc% = CH341SER_Inst.NTia64, USB\VID_1A86&PID_5523
%CH341SER.DeviceDesc% = CH341SER_Inst.NTia64, USB\VID_4348&PID_5523
%CH340SER.DeviceDesc% = CH341SER_Inst.NTia64, USB\VID_4348&PID_5523&REV_0250

[CH341SER_Install]
DelFiles  = CH341S98.DelFiles.SYS
CopyFiles = CH341SER.CopyFiles.SYS, CH341SER.CopyFiles.DLL
AddReg    = CH341SER.9X.AddReg, CH341SER.AddReg

[CH341SER_Install.NT]
CopyFiles = CH341SER.NT.CopyFiles.SYS, CH341SER.CopyFiles.DLL
AddReg    = CH341SER.NT.AddReg, CH341SER.AddReg

[CH341SER_Install.NT.HW]
AddReg    = CH341SER.NT.HW.AddReg

[CH341SER_Inst.NTamd64]
CopyFiles = CH341SER.NT.CopyFiles.SYSA64
AddReg    = CH341SER.NT.AddReg, CH341SER.AddReg

[CH341SER_Inst.NTamd64.HW]
AddReg    = CH341SER.NT.HW.AddReg

[CH341SER_Inst.NTia64]
CopyFiles = CH341SER.NT.CopyFiles.SYSI64
AddReg    = CH341SER.NT.AddReg, CH341SER.AddReg

[CH341SER_Inst.NTia64.HW]
AddReg    = CH341SER.NT.HW.AddReg

[CH341S98_Install]
DelFiles  = CH341S98.DelFiles.SYS
CopyFiles = CH341S98.CopyFiles.VXD, CH341SER.CopyFiles.SYS
AddReg    = CH341S98.9X.AddReg, CH341S98.AddReg

;[CH341S98_Install.NT]

[CH341S98.DelFiles.SYS]
CH341S98.SYS, , , 1

[CH341SER.CopyFiles.SYS]
CH341S98.SYS, , , 2

[CH341SER.NT.CopyFiles.SYS]
CH341SER.SYS, , , 2

[CH341SER.NT.CopyFiles.SYSA64]
CH341S64.SYS, , , 2

[CH341SER.NT.CopyFiles.SYSI64]
;CH341I64.SYS, , , 2

[CH341S98.CopyFiles.VXD]
CH341SER.VXD, , , 2

[CH341SER.CopyFiles.DLL]
CH341PT.DLL, , , 2
;°²×°DLLÊÇ¿ÉÑ¡µÄ,DLL¿ÉÒÔÓÃÓÚʶ±ðCH341¶Ë¿ÚºÍ¼àÊÓCH341¶Ë¿ÚµÄ²å°Îʼþ

[CH341SER.9X.AddReg]
HKR, , DevLoader, , *NTKERN
HKR, , NTMPDriver, , CH341S98.SYS

[CH341SER.NT.AddReg]
HKR,,EnumPropPages32,,"MsPorts.dll,SerialPortPropPageProvider"

[CH341SER.NT.HW.AddReg]
HKR,,"UpperFilters",0x00010000,"serenum"
;ÉÏÃæÕâÐÐÓÃÓÚö¾Ù½ÓÔÚ´®¿ÚµÄ¼´²å¼´ÓÃÉ豸,Æô¶¯Ê±½«²úÉúDTRºÍRTSÐźÅ,Èç¹ûÐèҪö¾Ù,Ç뽫ÉÏÃæÕâÐеķֺÅÈ¥µô

[CH341S98.9X.AddReg]
HKR, , DevLoader, , *vcomm
HKR, , PortDriver, , CH341SER.VXD
HKR, , Contention, , *vcd
HKR, , ConfigDialog, , serialui.dll
HKR, , DCB, 3, 1C,00,00,00, 80,25,00,00, 11,00,00,00, 00,00,0A,00, 0A,00,08,00, 00,11,13,00, 00,00,00,00
HKR, , PortSubClass, 1, 01
HKR, , EnumPropPages, , "serialui.dll,EnumPropPages"
HKR, , Enumerator, , serenum.vxd
;ÉÏÃæÕâÐÐÓÃÓÚö¾Ù½ÓÔÚ´®¿ÚµÄ¼´²å¼´ÓÃÉ豸,Æô¶¯Ê±½«²úÉúDTRºÍRTSÐźÅ,Èç¹ûÐèҪö¾Ù,Ç뽫ÉÏÃæÕâÐеķֺÅÈ¥µô

[CH341SER.AddReg]
HKLM, SOFTWARE\WinChipHead\IC\CH341SER, WDM, 0x00010001, 0x00000034
HKLM, SOFTWARE\WinChipHead\IC\CH341PORT, DLL, 0x00010001, 0x00000010
HKLM, SOFTWARE\WinChipHead\IC\CH341SER, Function, , "USB=>Serial"
;HKLM, SYSTEM\CurrentControlSet\Services\CH341SER, UserRemoval, 0x00010001, 0x00000001
;ÉÏÃæÕâÐÐÓÃÓÚÔÚϵͳÍÐÅÌÖÐÏÔʾ¡°°²È«É¾³ýUSBתSERIALÓ²¼þÉ豸¡±£¬±ãÓÚÓû§ÊÖ¹¤É¾³ýÓ²¼þ

[CH341S98.AddReg]
HKLM, SOFTWARE\WinChipHead\IC\CH341SER, VXD, 0x00010001, 0x00000023

[CH341SER_Install.NT.Services]
AddService = CH341SER, 2, CH341SER.Service
AddService = Serenum, , Serenum_Service_Inst

[CH341SER_Inst.NTamd64.Services]
AddService = CH341SER_A64, 2, CH341SER.ServiceA64
AddService = Serenum, , Serenum_Service_Inst

[CH341SER_Inst.NTia64.Services]
AddService = CH341SER_I64, 2, CH341SER.ServiceI64
AddService = Serenum, , Serenum_Service_Inst

[CH341SER.Service]
DisplayName   = "CH341SER"
ServiceType   = 1
StartType     = 3
ErrorControl  = 1
ServiceBinary = %10%\System32\Drivers\CH341SER.SYS

[CH341SER.ServiceA64]
DisplayName   = "CH341SER_A64"
ServiceType   = 1
StartType     = 3
ErrorControl  = 1
ServiceBinary = %10%\System32\Drivers\CH341S64.SYS

[CH341SER.ServiceI64]
DisplayName   = "CH341SER_I64"
ServiceType   = 1
StartType     = 3
ErrorControl  = 1
ServiceBinary = %10%\System32\Drivers\CH341I64.SYS

[Serenum_Service_Inst]
DisplayName    = "SerEnum"
ServiceType    = 1
StartType      = 3
ErrorControl   = 1
ServiceBinary  = %12%\serenum.sys
LoadOrderGroup = PNP Filter

[DestinationDirs]
DefaultDestDir      = 10, System32\Drivers
CH341S98.DelFiles.SYS = 11
CH341SER.CopyFiles.SYS = 10, System32\Drivers
CH341SER.NT.CopyFiles.SYS = 10, System32\Drivers
CH341S98.CopyFiles.VXD = 11
CH341SER.CopyFiles.DLL = 11
CH341SER.NT.CopyFiles.SYSA64 = 10, System32\Drivers
;CH341SER.NT.CopyFiles.SYSI64 = 10, System32\Drivers

[SourceDisksFiles]
CH341SER.SYS  = 1
CH341S98.SYS  = 1
CH341SER.VXD  = 1
CH341PT.DLL   = 1
CH341S64.SYS  = 1
;CH341I64.SYS  = 1

[SourceDisksNames]
1 = %DISK_NAME%, , ,

[SourceDisksNames.amd64]
1 = %DISK_NAME%, , ,

[SourceDisksNames.ia64]
1 = %DISK_NAME%, , ,

[Strings]
WinChipHead      = "wch.cn"
CH341SER.DeviceDesc = "USB-SERIAL CH341"
CH341S98.DeviceDesc = "USB-SERIAL CH341"
CH340SER.DeviceDesc = "USB-SERIAL CH340"
CH341ASER.DeviceDesc = "USB-SERIAL CH341A"
DISK_NAME = "CH341 Serial Installation Disk"
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How To Update Drivers Manually

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.

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