NSIS

!include

!addincludedir
    ${NSISDIR}\Include

!define

!undef

!ifdef
!else ifdef
!else
!endif

!ifndef
!else ifndef
!else
!endif

!if
!else if
!else
!endif

!ifmacrodef
!else ifmacrodef
!else
!endif

!ifmacrondef
!else ifmacrondef
!else
!endif

!macro
!macroend

!insertmacro

참조 사이트:

http://jjjryu.tistory.com/entry/%EC%BB%A8%ED%8A%B8%EB%A1%A4-NSIS
http://jjjryu.tistory.com/entry/NSIS