ShellExecute ! Was habe ich falsch gemacht?

[skyquaker]

Habs geschafft, vielen Dank.

Delphi-Quellcode:

ShellExecute(
        Handle,
        'open', 
        PChar(Instdir + 'Data\conv.exe'), 
        PChar('"'+Tempdir+'\temporary.wav'+'" "' + Instdir+'Output\'+fn+'"'+'.mp3'),
        nil, 
        SW_SHOWNORMAL
      );