Error Messages (E) A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #Error 111 "Insufficient Memory" during Setup.exe with >256MB RAM According to InstallShield's Knowledgebase, the -z flag is necessary on any machine with more than 256 MB RAM (with InstallShield v5; earlier versions show the problem at 128MB of Extended RAM). More information:http://support.installshield.com/kb/view.asp?pcode=CLASS500PEE&articleid=Q101828Solution Run setup like this: Start => Run Browse to location of setup files Enter command: "setup -z" Click OK