If I select Run as unsecure system user NAL object which is an install by Installshield with response file

\\server\DATA\snapshot\AficioMP3500.Twain\setup.ex e -s -f1\\server\DATA\snapshot\AficioMP3500.Twain\setup. iss -f2c:\temp\setup.log

it does NOT work at all. Not even the log file gets created.
Run as normal user works just fine

Anybody any idea why?

Seb