Microsoft Virtual Machine for Internet Explorer 5.5 for Windows 2000 is a patch that eliminates a security vulnerability. Microsoft Java Virtual Machine (JVM) is a platform-independent software engine which runs Java applets, applications, and COM objects. It is an interpreter and a runtime system. As an interpreter, JVM processes architecture-neutral instructions (bytecode). Bytecode is machine-independent code generated by Java compilers, such as JVC.EXE, and executed by the Java interpreter, or compiled at the last minute by a JIT compiler. This release of JVM primarily addresses security vulnerabilities which could enable malicious Web site operators to read files from the computer of a person who visited their site, or read Web content from inside an intranet if the malicious site is visited by a computer from within that intranet. In both cases, however, the malicious applet would have to know the exact name and location of the files.