!macro customInit
  # guid=7e51495b-3f4d-5235-aadd-5636863064f0
  ReadRegStr $0 HKLM "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\DS Talk_is1" "UninstallString"
  ${If} $0 != ""
    MessageBox MB_ICONINFORMATION|MB_TOPMOST  "이전 버전의 DS Talk을 제거 하시겠습니까?" IDOK
    ExecWait $0 $1
  ${EndIf}
!macroend

!macro customInstall
  # File "${BUILD_RESOURCES_DIR}\win\bin\npcap-0.99-r7.exe"
  # ExecWait '"$INSTDIR\npcap-0.99-r7.exe" /npf_startup=yes /loopback_support=yes /admin_only=no /dot11_support=yes /vlan_support=yes /winpcap_mode=yes'
!macroend