i just found that program on the internet.Looks interesting.anyone wanna test it? ht tp://malware.vze.com/ Malware Immunizer is a free and very useful application that was created to protect your system against known malware and maybe unknown ones. It can prevents some of the malware from installing on your system, which means that you still need an anti-virus software and a firewall. How does Malware Immunizer works? Malware Immunizer is a very simple tool that only create files and folders on your hard disk drive! So how does it prevent the installation of malware? Actually when you execute a executable file or installer, it may unload or create files on your hard disk drive. Let said a virus want to create a file named virus.exe on C: (C:\virus.exe), however if a folder named virus.exe already exists on C: (C:\virus.exe), the malicious file will not be written or overwrite the folder. Malware Immunizer make use of this behavior to prevent installation of malware by creating folders of known malware filename with path used by the malware. Note that it mostly only prevent installation of the core files that will be run every time the system boot up, meaning that when a malware is executed it may create other malicious files that must be cleaned using antivirus program. Likewise files will be used to prevent the creation of malicious folders which can contain harmful files.