win-guest-tools.nsis

#!Nsis Installer Command Script
# @configure_input@
# To build an installer from the script you would normally do:
#
#   makensis -D{SPICE,OVIRT} win-guest-tools.nsis
#
# which will generate the output file 'spice-guest-tools-$VERSION.exe' or
# 'ovirt-guest-tools-setup.exe' which are Windows
# installers containing your program.
#
#
#
# Copyright (c) 2012-2017 Red Hat, Inc
# Copyright (c) 2017 Lev Veyde <lveyde@redhat.com>
# Copyright (c) 2012 Grant Williamson <grant.williamson@gmail.com>
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
#

SetCompressor /SOLID lzma

!include "driver.nsh"
!include "FileFunc.nsh"
!include "WinVer.nsh"
!include "x64.nsh"


!ifdef SPICE
!define FILENAME "utm-guest-tools"
!define NAME "UTM Guest Tools"
!define PUBLISHER "Turing Software, LLC"
!define REGKEYNAME "SpiceGuestTools"
!define URL "https://getutm.app"
!else ifdef OVIRT
!define FILENAME "ovirt-guest-tools-setup"
!define NAME "oVirt Guest Tools"
!define PUBLISHER "The oVirt Project"
!define REGKEYNAME "oVirtGuestTools"
!define URL "http://www.ovirt.org/Home"
!else
!error "OVIRT or SPICE symbol should passed to makensis with the -D flag"
!endif

!ifndef VERSION
!error "-DVERSION=<version> should be passed to makensis, see Makefile"
!endif

!ifndef DISPLAYED_VERSION
!define DISPLAYED_VERSION "${VERSION}"
!endif

Name "${NAME}"
Caption "${NAME} Installer"
OutFile "${FILENAME}-${VERSION}.exe"
InstallDir "$PROGRAMFILES\${NAME}"
BrandingText " "

# SilentInstall silent
ShowInstDetails nevershow
# ShowUninstDetails hide

!include "MUI2.nsh"
!insertmacro MUI_PAGE_WELCOME
!insertmacro MUI_PAGE_LICENSE win-driver-license.txt
!insertmacro MUI_PAGE_INSTFILES
!insertmacro MUI_PAGE_FINISH

!insertmacro MUI_UNPAGE_WELCOME
!insertmacro MUI_UNPAGE_INSTFILES
!insertmacro MUI_UNPAGE_FINISH

!insertmacro MUI_LANGUAGE "English"

!include "DumpLog.nsh"

XPStyle on
RequestExecutionLevel admin

ComponentText "Select which optional components you want to install."

DirText "Please select the installation folder."

Section "install"
  SectionIn RO

  Call StopServices

  SetOutPath "$INSTDIR"
  File "version.txt"

!ifdef OVIRT
  File "bin\vc_redist.arm64.exe"
  File "bin\vcredist_x86.exe"
  File "bin\OVirtGuestService.exe"
  File "bin\ovirt-guest-agent.ini"
  File "bin\default.ini"
  File "bin\default-logger.ini"

  CreateDirectory "$INSTDIR\hooks\after_hibernation"
  CreateDirectory "$INSTDIR\hooks\before_hibernation"
  CreateDirectory "$INSTDIR\hooks\after_migration"
  CreateDirectory "$INSTDIR\hooks\before_migration"

  ${If} ${IsNativeARM64}
    ExecWait '"$INSTDIR\vc_redist.arm64.exe" /q'
  ${Else}
    ExecWait '"$INSTDIR\vcredist_x86.exe" /q'
  ${EndIf}
!endif

!ifdef SPICE
  File "bin\vc_redist.arm64.exe"
  File "bin\spice-webdavd-x86-2.2.msi"
  File "bin\spice-webdavd-x86-latest.msi"
  File "bin\spice-webdavd-x64-2.2.msi"
  File "bin\spice-webdavd-x64-latest.msi"
  File "bin\spice-webdavd-arm64-latest.msi"
  File "bin\qemu-ga-i386.msi"
  File "bin\qemu-ga-x86_64.msi"

  ${If} ${IsNativeARM64}
    ExecWait '"$INSTDIR\vc_redist.arm64.exe" /q'
  ${EndIf}
!endif

  SetOutPath "$INSTDIR\32"
  File "bin\vdagent_x86\vdagent.exe"
  File "bin\vdagent_x86\vdservice.exe"
  SetOutPath "$INSTDIR\64"
  File "bin\vdagent_x64\vdagent.exe"
  File "bin\vdagent_x64\vdservice.exe"
  SetOutPath "$INSTDIR\ARM64"
  File "bin\vdagent_arm64\vdagent.exe"
  File "bin\vdagent_arm64\vdservice.exe"

  SetOutPath "$INSTDIR\drivers"
  File /r /x *.pdb drivers\virtio\*.*

  Push "vioserial"
  Push "vioser"
  Push "PCI\VEN_1AF4&DEV_1003&SUBSYS_00031AF4"
  Call InstallDriver

  Call InstallQemuGuestAgent

  ${if} ${AtLeastWin8}
    Push "qxldod"
    Push "qxldod"
  ${else}
    Push "qxl"
    Push "qxl"
  ${endif}
  Push "PCI\VEN_1b36&DEV_0100&SUBSYS_11001af4"
  Call InstallDriver

  Push "Balloon"
  Push "balloon"
  Push "PCI\VEN_1AF4&DEV_1002&SUBSYS_00051AF4&REV_00"
  Call InstallBalloonDriver

  Push "viostor"
  Push "viostor"
  Push "PCI\VEN_1AF4&DEV_1001&SUBSYS_00021AF4&REV_00"
  Call InstallDriver

  ${If} ${AtLeastWinVista}
    Push "vioscsi"
    Push "vioscsi"
    Push "PCI\VEN_1AF4&DEV_1004&SUBSYS_00081AF4&REV_00"
    Call InstallDriver
  ${EndIf}

  ${IfNot} ${IsNativeARM64}
    Push "."
    Push "qemupciserial"
    Push "PCI\VEN_1B36&DEV_0002"
    Call InstallDriver

    Push "."
    Push "qemupciserial"
    Push "PCI\VEN_1B36&DEV_0003"
    Call InstallDriver

    Push "."
    Push "qemupciserial"
    Push "PCI\VEN_1B36&DEV_0004"
    Call InstallDriver
  ${EndIf}

  Push "NetKVM"
  Push "netkvm"
  Push "PCI\VEN_1AF4&DEV_1000&SUBSYS_00011AF4&REV_00"
  Call InstallDriver

  ${IfNot} ${IsNativeARM64}
    # Install rng driver
    ${If} ${AtLeastWinVista}
      Push "viorng"
      Push "viorng"
      Push "PCI\VEN_1AF4&DEV_1005"
      Call InstallDriver
    ${EndIf}

    # Install Q35 smbus driver
    ${If} ${IsWin2008}
      Push "smbus"
      Push "smbus"
      Push "PCI\VEN_8086&DEV_2930&SUBSYS_11001AF4"
      Call InstallDriver
    ${EndIf}

    # Install Q35 qemufwcfg driver
    ${If} ${AtLeastWin10}
    ${OrIf} ${AtLeastWin2016}
      Push "qemufwcfg"
      Push "qemufwcfg"
      Push "ACPI\QEMU0002"
      Call InstallDriver
    ${EndIf}

    ${If} ${AtLeastWin8}
    ${OrIf} ${AtLeastWin2012}
      Push "viofs"
      Push "viofs"
      Push "PCI\VEN_1AF4&DEV_105A&SUBSYS_11001AF4&REV_01"
      Call InstallDriver
    ${EndIf}
  ${EndIf}

  ${If} ${AtLeastWin7}
  ${OrIf} ${AtLeastWin2008}
    Push "pvpanic"
    Push "pvpanic"
    Push "ACPI\QEMU0001"
    Call InstallDriver

    Push "vioinput"
    Push "vioinput"
    Push "PCI\VEN_1AF4&DEV_1052&SUBSYS_11001AF4&REV_01"
    Call InstallDriver
  ${EndIf}

  ${If} ${AtLeastWin10}
  ${OrIf} ${AtLeastWin2016}
    Push "viogpu"
    Push "viogpudo"
    Push "PCI\VEN_1AF4&DEV_1050&SUBSYS_11001AF4&REV_01"
    Call InstallDriver
  ${EndIf}

!ifdef OVIRT
  Call InstallOVirtAgentService
!endif

!ifdef SPICE
  Call InstallSpiceWebdavd
  Call InstallGuestAgent
!endif

  Call InstallVdAgentService

${If} ${IsNativeARM64}
  Call DisableFallbackDisplay
${EndIf}

  WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\${REGKEYNAME}" \
                 "DisplayName" "${NAME} ${DISPLAYED_VERSION}"
  WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\${REGKEYNAME}" \
                 "DisplayVersion" "${DISPLAYED_VERSION}"
  WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\${REGKEYNAME}" \
                 "Publisher" "${PUBLISHER}"
  WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\${REGKEYNAME}" \
                 "URLInfoAbout" "${URL}"
  WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\${REGKEYNAME}" \
                 "UninstallString" "$\"$INSTDIR\Uninstall ${FILENAME}$\""
  WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\${REGKEYNAME}" \
                 "QuietUninstallString" "$\"$INSTDIR\Uninstall ${FILENAME}$\" /S"
  WriteRegDWORD HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\${REGKEYNAME}" \
                 "NoModify" "1"
  WriteRegDWORD HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\${REGKEYNAME}" \
                 "NoRepair" "1"
  ${GetSize} "$INSTDIR" "/S=0K" $0 $1 $2
  IntFmt $0 "0x%08X" $0
  WriteRegDWORD HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\${REGKEYNAME}" \
                 "EstimatedSize" "$0"
SectionEnd

Section "Uninstall"
  Call un.StopServices
  Call un.UninstallServices
  Call un.UninstallQemuGuestAgent
!ifdef SPICE
  Call un.UninstallSpiceWebdavd
  Call un.UninstallGuestAgent
!endif

${If} ${IsNativeARM64}
  Call un.EnableFallbackDisplay
${EndIf}

  SetOutPath "$TEMP"

  Delete /rebootok "$INSTDIR\version.txt"
  Delete /rebootok "$INSTDIR\Uninstall ${FILENAME}.exe"
  Delete /rebootok "$INSTDIR\32\vdagent.exe"
  Delete /rebootok "$INSTDIR\32\vdservice.exe"
  RMDir /rebootok "$INSTDIR\32"
  Delete /rebootok "$INSTDIR\64\vdagent.exe"
  Delete /rebootok "$INSTDIR\64\vdservice.exe"
  RMDir /rebootok "$INSTDIR\64"
  Delete /rebootok "$INSTDIR\ARM64\vdagent.exe"
  Delete /rebootok "$INSTDIR\ARM64\vdservice.exe"
  RMDir /rebootok "$INSTDIR\ARM64"
  RMDir /rebootok /r "$INSTDIR\drivers"
!ifdef OVIRT
  Delete /rebootok "$INSTDIR\OVirtGuestService.exe"

  Delete /rebootok "$INSTDIR\default.ini"
  Delete /rebootok "$INSTDIR\default-logger.ini"
  Delete /rebootok "$INSTDIR\ovirt-guest-agent.ini"
  Delete /rebootok "$INSTDIR\vcredist_x86.exe"
  Delete /rebootok "$INSTDIR\vcredist.arm64.exe"

  RMDir /rebootok "$INSTDIR\hooks\after_hibernation"
  RMDir /rebootok "$INSTDIR\hooks\before_hibernation"
  RMDir /rebootok "$INSTDIR\hooks\after_migration"
  RMDir /rebootok "$INSTDIR\hooks\before_migration"
  RMDir /rebootok "$INSTDIR\hooks"
!endif
!ifdef SPICE
  Delete /rebootok "$INSTDIR\OVirtGuestService.exe"
  Delete /rebootok "$INSTDIR\vc_redist.arm64.exe"
  Delete /rebootok "$INSTDIR\spice-webdavd-x86-2.2.msi"
  Delete /rebootok "$INSTDIR\spice-webdavd-x86-latest.msi"
  Delete /rebootok "$INSTDIR\spice-webdavd-x64-2.2.msi"
  Delete /rebootok "$INSTDIR\spice-webdavd-x64-latest.msi"
  Delete /rebootok "$INSTDIR\spice-webdavd-arm64-latest.msi"
  Delete /rebootok "$INSTDIR\qemu-ga-i386.msi"
  Delete /rebootok "$INSTDIR\qemu-ga-x86_64.msi"
!endif
  RMDir /rebootok "$INSTDIR"


  DeleteRegKey HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\${REGKEYNAME}"
SectionEnd

Section -post
  WriteUninstaller "$INSTDIR\Uninstall ${FILENAME}.exe"
  # for reference: https://stackoverflow.com/questions/2407509/writing-current-date-time-as-file-name-using-nsis
  !define /date MyTIMESTAMP "%Y-%m-%d-%H-%M-%S"
  StrCpy $0 "$INSTDIR\install-${MyTIMESTAMP}.log"
  Push $0
  Call DumpLog
SectionEnd

Function .onInit
   ${if} ${RunningX64}
     ${if} ${IsWinXP}
       MessageBox MB_ICONEXCLAMATION "Windows XP 64 bit is an unsupported Windows version"
       Abort ; causes installer to quit.
     ${endif}
   ${endif}
   ${if} ${AtMostWin2000}
       MessageBox MB_ICONEXCLAMATION "Drivers only available for Windows XP or newer"
       Abort ; causes installer to quit.
   ${endif}
FunctionEnd

Function GetDriverSubdir
   Pop $0
   ${If} ${IsWinXP}
      StrCpy $0 "$0\xp"
   ${ElseIf} ${IsWinVista}
      StrCpy $0 "$0\vista"
   ${ElseIf} ${IsWin2003}
      StrCpy $0 "$0\2k3"
   ${ElseIf} ${IsWin7}
      StrCpy $0 "$0\w7"
   ${ElseIf} ${IsWin2008}
      StrCpy $0 "$0\2k8"
   ${ElseIf} ${IsWin2008R2}
      StrCpy $0 "$0\2k8R2"
   ${ElseIf} ${IsWin8}
      StrCpy $0 "$0\w8"
   ${ElseIf} ${IsWin2012}
      StrCpy $0 "$0\2k12"
   ${ElseIf} ${IsWin8.1}
      StrCpy $0 "$0\w8.1"
   ${ElseIf} ${IsWin2012R2}
      StrCpy $0 "$0\2k12r2"
   ${ElseIf} ${AtLeastWin10}
      StrCpy $0 "$0\w10"
   ${ElseIf} ${AtLeastWin2016}
      StrCpy $0 "$0\2k16"
   ${Else}
      MessageBox MB_ICONEXCLAMATION "Unsupported Windows version"
      Abort ; causes installer to quit.
   ${EndIf}



   ${If} ${IsNativeARM64}
      StrCpy $0 "$0\ARM64"
   ${ElseIf} ${IsNativeAMD64}
      StrCpy $0 "$0\amd64"
   ${Else}
      StrCpy $0 "$0\x86"
   ${EndIf}

   Push $0
FunctionEnd

Function InstallBalloonDriver
  Call InstallDriver

  Call InstallBalloonService

FunctionEnd

Function InstallDriver
  Pop $R0 ; HID
  Pop $R1 ; driver name
  Pop $R2 ; driver path
  Push $R2
  Call GetDriverSubdir
  Pop $0
  StrCpy $1 $R1
  Push $1
  StrCpy $2 "$INSTDIR\drivers\$0"
  Push $2
  StrCpy $3 "$2\$R1.inf"
  Push $3
  Push $R0
  DetailPrint "Installing $R1.inf"
  Call InstallUpgradeDriver
FunctionEnd

!macro StopServices un
Function ${un}StopService
  pop $R0

  SimpleSC::ServiceIsRunning $R0
  pop $0
  pop $1
  ${if} $0 != 0
    # error
    Return
  ${endif}
  ${if} $1 == 0
    # service not running
    Return
  ${endif}

  DetailPrint "Stopping $R0"
  SimpleSC::StopService $R0 1 30
  pop $0
  ${if} $0 != 0
    DetailPrint "Failed to stop $R0: $0"
    Return
  ${endif}
  DetailPrint "$R0 stopped"
FunctionEnd

Function ${un}StopServices
  push "vdservice"
  Call ${un}StopService

  push "BalloonService"
  Call ${un}StopService

!ifdef OVIRT
  push "OVirtGuestService"
  Call ${un}StopService
!endif

FunctionEnd
!macroend

!insertmacro StopServices ""
!insertmacro StopServices "un."

Function un.UninstallService
  pop $R0
  SimpleSC::ExistsService $R0
  Pop $0
  ${if} $0 == 0
    SimpleSC::RemoveService $R0
  ${endif}
FunctionEnd

Function un.UninstallServices
  push "vdservice"
  Call un.UninstallService

  push "BalloonService"
  Call un.UninstallService

!ifdef OVIRT
  push "OVirtGuestService"
  Call un.UninstallService
!endif
FunctionEnd

Function InstallService
  pop $R0 #service name
  pop $R1 #service path
  pop $R2 #service pretty name

  SimpleSC::ExistsService $R0
  Pop $0
  ${if} $0 == 0
    DetailPrint "$R2 service already installed"
    goto InstallService
  ${endif}

  DetailPrint "Installing $R2 service"
  SimpleSC::InstallService $R0 $R2 16 2 '"$R1"' "" "" ""
  Pop $0
  ${if} $0 != 0
    DetailPrint "Failed to install $R2 service: $0"
    Return
  ${endif}
  DetailPrint "$R2 service installed"

InstallService:
  DetailPrint "Starting $R2 service"
  SimpleSC::StartService $R0 "" 30
  Pop $0
  ${if} $0 != 0
    DetailPrint "Failed to start $R2 service: $0"
    Return
  ${endif}
  DetailPrint "$R2 service started"
FunctionEnd

Function InstallQemuGuestAgent
  ${if} ${IsNativeAMD64}
    StrCpy $0 "$INSTDIR\drivers\guest-agent\qemu-ga-x64.msi"
  ${else}
    StrCpy $0 "$INSTDIR\drivers\guest-agent\qemu-ga-x86.msi"
  ${endif}
  ExecWait '"msiexec.exe" /qn /i "$0"'
FunctionEnd

Function un.UninstallQemuGuestAgent
  ${if} ${IsNativeAMD64}
    StrCpy $0 "$INSTDIR\drivers\guest-agent\qemu-ga-x64.msi"
  ${else}
    StrCpy $0 "$INSTDIR\drivers\guest-agent\qemu-ga-x86.msi"
  ${endif}
  ExecWait '"msiexec.exe" /qn /x "$0"'
FunctionEnd

Function InstallVdAgentService
  ${if} ${IsNativeARM64}
    StrCpy $0 "$INSTDIR\ARM64\vdservice.exe"
  ${elseif} ${IsNativeAMD64}
    StrCpy $0 "$INSTDIR\64\vdservice.exe"
  ${else}
    StrCpy $0 "$INSTDIR\32\vdservice.exe"
  ${endif}

  push "SPICE VDAgent"
  push $0
  push "vdservice"
  Call InstallService

FunctionEnd

!ifdef OVIRT
Function InstallOVirtAgentService
  StrCpy $0 "$INSTDIR\OVirtGuestService.exe"

  push "OVirt Guest Service"
  push $0
  push "OVirtGuestService"
  Call InstallService
FunctionEnd
!endif

!ifdef SPICE
Function InstallSpiceWebdavd
  ${if} ${IsNativeARM64}
    StrCpy $0 "$INSTDIR\spice-webdavd-arm64-latest.msi"
  ${elseif} ${IsNativeAMD64}
    ${if} ${AtLeastWin7}
      StrCpy $0 "$INSTDIR\spice-webdavd-x64-latest.msi"
    ${else}
      StrCpy $0 "$INSTDIR\spice-webdavd-x64-2.2.msi"
    ${endif}
  ${else}
    ${if} ${AtLeastWin7}
      StrCpy $0 "$INSTDIR\spice-webdavd-x86-latest.msi"
    ${else}
      StrCpy $0 "$INSTDIR\spice-webdavd-x86-2.2.msi"
    ${endif}
  ${endif}
  ExecWait '"msiexec.exe" /qn /i "$0"'
FunctionEnd

Function un.UninstallSpiceWebdavd
  ${if} ${IsNativeARM64}
    StrCpy $0 "$INSTDIR\spice-webdavd-arm64-latest.msi"
  ${elseif} ${IsNativeAMD64}
    ${if} ${AtLeastWin7}
      StrCpy $0 "$INSTDIR\spice-webdavd-x64-latest.msi"
    ${else}
      StrCpy $0 "$INSTDIR\spice-webdavd-x64-2.2.msi"
    ${endif}
  ${else}
    ${if} ${AtLeastWin7}
      StrCpy $0 "$INSTDIR\spice-webdavd-x86-latest.msi"
    ${else}
      StrCpy $0 "$INSTDIR\spice-webdavd-x86-2.2.msi"
    ${endif}
  ${endif}
  ExecWait '"msiexec.exe" /qn /x "$0"'
FunctionEnd

Function InstallGuestAgent
  ${if} ${IsNativeARM64}
    StrCpy $0 "$INSTDIR\qemu-ga-x86_64.msi"
  ${elseif} ${IsNativeAMD64}
    StrCpy $0 "$INSTDIR\qemu-ga-x86_64.msi"
  ${else}
    StrCpy $0 "$INSTDIR\qemu-ga-i386.msi"
  ${endif}
  ExecWait '"msiexec.exe" /qn /i "$0"'
FunctionEnd

Function un.UninstallGuestAgent
  ${if} ${IsNativeARM64}
    StrCpy $0 "$INSTDIR\qemu-ga-x86_64.msi"
  ${elseif} ${IsNativeAMD64}
    StrCpy $0 "$INSTDIR\qemu-ga-x86_64.msi"
  ${else}
    StrCpy $0 "$INSTDIR\qemu-ga-i386.msi"
  ${endif}
  ExecWait '"msiexec.exe" /qn /x "$0"'
FunctionEnd
!endif

Function InstallBalloonService
  Push "Balloon"
  Call GetDriverSubdir
  Pop $0
  StrCpy $0 "$INSTDIR\drivers\$0\blnsvr.exe"

  Push "Balloon Service"
  Push $0
  Push "BalloonService"
  Call InstallService

FunctionEnd

Function DisableFallbackDisplay
  DetailPrint "Disabling firmware display adapter"
  WriteRegDWORD HKLM "System\CurrentControlSet\Control\GraphicsDrivers\BasicDisplay" \
                 "DisableBasicDisplayFallback" "1"
  SetRebootFlag true
FunctionEnd

Function un.EnableFallbackDisplay
  DetailPrint "Enabling firmware display adapter"
  DeleteRegValue HKLM "System\CurrentControlSet\Control\GraphicsDrivers\BasicDisplay" \
                 "DisableBasicDisplayFallback"
  DeleteRegKey /ifempty HKLM "System\CurrentControlSet\Control\GraphicsDrivers\BasicDisplay"
  SetRebootFlag true
FunctionEnd