Windows NSIS installer source code

;--------------------------------
;Include Modern UI

  !include "MUI2.nsh"

;--------------------------------
;General

  !define APPNAME "Tcl 8.6 for Windows (Unofficial)"
  !define VERSION "8.6.6-0.1.0"
  
  ;Name and file
  Name "${APPNAME}"
  OutFile "tcl86-installer-${VERSION}.exe"
  SetCompressor /SOLID lzma

  ;Default installation folder
  InstallDir "$LOCALAPPDATA\Tcl86"
  
  ;Get installation folder from registry if available
  InstallDirRegKey HKCU "Software\${APPNAME}" ""

  ;Request application privileges for Windows Vista
  RequestExecutionLevel user

;--------------------------------
;Interface Settings

  !define MUI_ABORTWARNING

;--------------------------------
;Pages

;  !insertmacro MUI_PAGE_LICENSE "${NSISDIR}\Docs\Modern UI\License.txt"
  !insertmacro MUI_PAGE_COMPONENTS
  !insertmacro MUI_PAGE_DIRECTORY
  !insertmacro MUI_PAGE_INSTFILES
  
  !insertmacro MUI_UNPAGE_CONFIRM
  !insertmacro MUI_UNPAGE_INSTFILES
  
;--------------------------------
;Languages
 
  !insertmacro MUI_LANGUAGE "English"

;--------------------------------
;Installer Sections

Section "Tcl 8.6 for Windows" SecTcl

  SetOutPath "$INSTDIR"
  
  ;ADD YOUR OWN FILES HERE...
  File /r "Tcl86\"
  
  ;Store installation folder
  WriteRegStr HKCU "Software\${APPNAME}" "" $INSTDIR
  
  ;Create uninstaller
  WriteUninstaller "$INSTDIR\Uninstall.exe"

  WriteRegStr HKCU "Software\Microsoft\Windows\CurrentVersion\Uninstall\${APPNAME}" \
              "DisplayName" "${APPNAME}"
  WriteRegStr HKCU "Software\Microsoft\Windows\CurrentVersion\Uninstall\${APPNAME}" \
              "DisplayVersion" "${VERSION}"
  WriteRegStr HKCU "Software\Microsoft\Windows\CurrentVersion\Uninstall\${APPNAME}" \
              "UninstallString" "$INSTDIR\Uninstall.exe"
SectionEnd

Section "Start menu shortcuts"
  createDirectory "$SMPROGRAMS\${APPNAME}"
  createShortCut "$SMPROGRAMS\${APPNAME}\Tcl command shell.lnk" "$INSTDIR\bin\tclsh.exe" "" "" "" "" "" "Console for interactive execution of commands in the Tcl language"
  createShortCut "$SMPROGRAMS\${APPNAME}\Tk graphical console.lnk" "$INSTDIR\bin\wish.exe" "" "" "" "" "" "Graphical console for interactive execution of commands using the Tcl/Tk toolkit"
  createShortCut "$SMPROGRAMS\${APPNAME}\Tkcon enhanced console.lnk" "$INSTDIR\bin\wish.exe" "$\"$INSTDIR\bin\tkcon.tcl$\"" "" "" "" "" "Graphical enhanced console for interactive execution of commands using the Tcl/Tk toolkit"
  createShortCut "$SMPROGRAMS\${APPNAME}\Uninstall.lnk" "$INSTDIR\Uninstall.exe" "" "" "" "" "" "Uninstall ${APPNAME}"
SectionEnd

;--------------------------------
;Uninstaller Section

Section "Uninstall"

  ;ADD YOUR OWN FILES HERE...
  RMDir /r /r "$INSTDIR\bin\"
  RMDir /r "$INSTDIR\lib\"

  Delete "$SMPROGRAMS\${APPNAME}\Tcl command shell.lnk"
  Delete "$SMPROGRAMS\${APPNAME}\Tk graphical console.lnk"
  Delete "$SMPROGRAMS\${APPNAME}\Tkcon enhanced console.lnk"
  Delete "$SMPROGRAMS\${APPNAME}\Uninstall.lnk"
  RMDir "$SMPROGRAMS\${APPNAME}"

  Delete "$INSTDIR\Uninstall.exe"

  RMDir "$INSTDIR"

  DeleteRegKey /ifempty HKCU "Software\${APPNAME}"
  DeleteRegKey HKCU "Software\Microsoft\Windows\CurrentVersion\Uninstall\${APPNAME}"
SectionEnd