Do not install the IdolSoundLab installation file on computers without CD drive. Install the IdolSoundLabMini installation file instead.
You can try to do this: Open the folder C:->Users->Public->BDRegistration and remove the following files: IdolSLab6DateFile, IdolSLab6Properties and IdolSLab6RegFile. Try to launch the program again.
[@John Caramico]