What is a kdz file and how do I open a kdz file?

A KDZ file is installed with Kaspersky antivirus and Internet security software developed by Kaspersky Lab. It is designed to protect users from malware and is primarily designed for sytems running Microsoft Windows and Mac OS X, although a version is available for Linux for business consumers. Microsoft Windows users may download an antivirus rescue disk that scans the system during boot-up inside an isolated Linux environment. Additionally, Kaspersky Anti-Virus prevents itself from being shot-off by malware without user permission via password access prompts upon disabling protection elements and altering internal settings. It also scans incoming instant messenger traffic, Email traffic, automatically disables links to known malware hosting sites while using Internet Explorer or Firefox and includes free technical support and free product upgrades within paid-subscription periods. Kaspersky Anti-Virus features include real-time protection, trojans, worms, detection and removal of viruses, spyware, keyloggers malicious tools and auto-dialers, adware, as well as detection and removal of rootkits. It also includes continuous automatic updates via the "Kaspersky Security Network" service.