Similar problem:
Installing Defraggler v1.14 made no problems. But when I clicked the install button for v1.15, my soundcard made immediately "tu-tu-tu-tu-..." and the installation progress stopped. Important: During this, the folder wherein I clicked on the downloaded dfsetup115.exe was still opened. As soon as I closed this folder and only the window of the defraggler installer remained on my screen, the soundcard became silent, the progress run to the end and the defraggler was running without problems. (My L&S-PC is six years old, XP home + SP3, 2,7MHz, 2GB working memory, 160GB hard disk.)
Peter from Germany
