I've always used /sAll as the silent switch for Adobe Reader (v8 and earlier). Now I'm trying to use ar9lite_eng.exe and /sAll doesn't work. It comes up with the msiexec.exe help window. Is there a new silent install switch? I see that the installer is, in fact, unattended. But I was just wondering if it was possible to make it invisible. Thanks for your great work, Shark. It's much appreciated!