P

Packed files - Files containing a program and instructions for the program execution by the operating system.
Patch - A package of files used for updating programs. Patches are downloaded from the Internet and installed on your computer.
Possibly infected object - An object that contains code of an unknown virus or a code reminiscent of a known virus. Possibly infected objects are detected by the heuristic code analyzer.
Potentially infectable object - An object that has the potential to be infected. Potentially infectable objects are usually executable files, i.e. files with the com, exe and other extensions.
Prevention - A set of measures taken to prevent viruses from penetrating your computer. Computer virus prevention includes comprehensive anti-virus protection and retrieving current updates to your application.