To prevent Comet Cursor from automatically installing itself in your MS Internet Explorer, make sure "Installation of Desktop Items" is disabled or set to Prompt in the Security settings for Internet and Restricted Zones, Download Signed Active X Controls should be set to Prompt (under Tools | Internet options). Netscape users should have Require Manual Confirmation of Each Install checked under Edit | Preferences | Advanced | Smart Update. If these settings do not stop automatic installs, check your 'trusted' applications under Edit | Preferences | Navigator | Applications.