!define APP_NAME "MyApp"
!define APP_VERSION ${VERSION}
!define COMPANY_NAME "My Company"

OutFile "dist\installer.exe"
InstallDir "$PROGRAMFILES\${APP_NAME}"
RequestExecutionLevel admin

Page directory
Page instfiles

Section "MainSection"
  SetOutPath $INSTDIR
  File "dist\app.exe"
  WriteUninstaller $INSTDIR\uninstall.exe
SectionEnd

Section "Uninstall"
  Delete $INSTDIR\app.exe
  Delete $INSTDIR\uninstall.exe
  RMDir $INSTDIR
SectionEnd