..What a problem !..
A ugly solution is something like this :

    ;Test.kix
    CLS
    SHELL "REF.BAT"
    SLEEP 1
    SENDKEYS("{F5}")

    REM Ref.bat
    C:\REF.SCF

REF.SCF is a copy from the icon that Windows 2000 has placed on the quick launch bar "Show Desktop". This solution need three files. Their must be a better solution ?

What is a SCF file ?