Most of us tend to download all types of software and other goodies while surfing the Internet. However, you can never be too careful when you're downloading from the Internet. As a measure of precaution, you should always use your anti-virus software to scan items you wish to download. In addition, if you'd like to incorporate an extra security measure when you download programs, you can configure Internet Explorer 6 to check whether the software you're downloading has been digitally signed. If a digital signature doesn't exist, you'll receive a warning which will allow you to abort the download. To activate this feature, choose 'Tools->Internet Options' then click on the 'Advanced' tab. Next, locate the 'Security' options in the 'Settings' list box. Select the 'Check For Signatures On Downloaded Programs' checkbox then click OK. The next time you download a program, Internet Explorer checks the item for a digital signature and notifies you it it exists.