!define INSTALLOPTIONS_ERROR "MUI_INSTALLOPTIONS_* macros are no longer a part of MUI2. Include InstallOptions.nsh and use INSTALLOPTIONS_* macros instead. It is also recommended to upgrade to nsDialogs."
!macro MUI_INSTALLOPTIONS_READ VAR FILE SECTION KEY
!error "${INSTALLOPTIONS_ERROR}"
!macroend
!macro MUI_INSTALLOPTIONS_WRITE FILE SECTION KEY VALUE
!error "${INSTALLOPTIONS_ERROR}"
!macroend
!macro MUI_RESERVEFILE_INSTALLOPTIONS
!define MUI_DOLLAR "$"
!error "MUI_RESERVEFILE_INSTALLOPTIONS is no longer supported as InstallOptions is no longer used by MUI2. Instead, use ReserveFile '${MUI_DOLLAR}{NSISDIR}\Plugins\InstallOptions.dll'. It is also recommended to upgrade to nsDialogs."