This program also falls afoul of one of Dr. Phil's Rules of Bad Programming:
Disk-Space Requirements for Internet Explorer 5.5 Installation --------------------------------------------------------------- Internet Explorer 5.5 and Internet Tools Beta Setup installs the majority of its files on the drive where the Windows operating system is installed, regardless of the installation location you chose. To free up space on your hard disk in order to meet the Internet Explorer 5.5 disk-space installation requirements, you must free up space on the drive where the Windows operating system is installed.