ToolTips Unicode (example)

;
; Кодировка сценария UTF-8 with BOM !!!
;

Unicode true

!define MUI_COMPONENTSPAGE_NODESC
!include MUI2.nsh
!include LogicLib.nsh

Name "Unicode_tooltips"
OutFile "ToolTips4U.exe"
XPStyle on

!insertmacro MUI_PAGE_COMPONENTS
!insertmacro MUI_PAGE_INSTFILES
!insertmacro MUI_LANGUAGE English

Section Foo SID_FOO
SectionEnd
Section Bar SID_BAR
SectionEnd
Section Baz SID_BAZ
SectionEnd

var ttip

!define WS_POPUP 0x80000000
!define TTF_SUBCLASS    0x010
!define /math TTM_ACTIVATE ${WM_USER} + 1
!define /math TTM_ADDTOOLW ${WM_USER} + 50
!define /math TTM_SETTOOLINFOW ${WM_USER} + 54
!define /math TTM_TRACKACTIVATE ${WM_USER} + 17
!define /math TTM_TRACKPOSITION ${WM_USER} + 18
!define /math TTM_POP ${WM_USER} + 28
!define /math TTM_POPUP ${WM_USER} + 34

Function .onMouseOverSection
  ${If} $0 = -1
  killtip:
      SendMessage $ttip ${TTM_ACTIVATE} 0 0
      Return
  ${EndIf}
  StrCpy $2 ""
  ${If} $ttip = 0
      System::Call 'USER32::CreateWindowEx(i${WS_EX_TOPMOST},t"tooltips_class32",i,i${WS_POPUP},i,i,i,i,i0,i,i,i)i.r2'
      StrCpy $ttip $2
  ${EndIf}
  StrCpy $1 ""
  ${Select} $0
  ${Case} ${SID_FOO}
      StrCpy $1 "Основной модуль программы (超级链接)"
  ${Case} ${SID_BAR}
      StrCpy $1 "Компоненты программы (访问我的博客)"
  ${Case} ${SID_BAZ}
      StrCpy $1 "Дополнительные инструменты"
  ${EndSelect}
  FindWindow $3 "#32770" "" $HWNDPARENT
  System::Call '*(i44,i${TTF_SUBCLASS},i$3,i0x678,i,i,i,i,i0,tr1,i0)i.r1'
  SendMessage $2 ${TTM_ADDTOOLW} 0 $1
  SendMessage $ttip ${TTM_SETTOOLINFOW} 0 $1
  SendMessage $ttip ${TTM_ACTIVATE} 1 0
  SendMessage $ttip ${TTM_TRACKACTIVATE} 1 $1
  System::Free $1
  ${If} $2 <> 0
      ;BUGFIX: Sometimes we get an initial onMouseOverSection call with no place to show a tip
      System::Call 'USER32::IsWindowVisible(ir3)i.r0'
      ${IfThen} $0 = 0 ${|} goto killtip ${|}
  ${EndIf}
FunctionEnd