A PIF file contains information for MS-DOS applications to run in a Windows environment with minimal resources. It includes memory requirements, executable file path, and window specifications. PIF files were modified to work in Windows environments, but can also be misused by hackers to embed viruses. Users should be cautious when opening attachments with “exe” or “pif” extensions.
Program information file, normally referred to as a PIF file, is a type of file extension that was developed in the days before the advent of Windows applications. This type of file is designed to essentially contain information that will allow an MS-DOS application to know how to run in a Windows environment. The idea behind the PIF file is that the data will tell the operating system how to run the application using the least amount of resources needed. Today, a PIF also performs a similar function with any Windows-based application.
An example of the information contained in the PIF file is the amount of memory required to drive the application to which the file extension corresponds. A path to the executable file associated with the file is also designated so that the system does not have to search to start the program. Typically, the PIF detail will also include a specification of the type of window that should be used to open the application, such as a full screen or a smaller window size. This is accomplished by designating the number of pixels that are to be used for the display.
While originally developed as a non-Windows application, the value of the PIF file was quickly realised, and the protocols were modified by Microsoft to allow PIF files to work in a Windows environment as well. The result was a full-service application that helped make the most of the resources on the hard drive, allowing computers to run at a higher rate of efficiency.
Unfortunately, hackers and others who create and distribute viruses sometimes misuse the PIF file. Because of the relative ease of creating a PIF file, it’s easy to create an executable file that looks harmless, but is actually embedded with a virus. The infected file is then sent to a number of email addresses, waiting for someone to open the file, infect the hard drive, and in turn propagate itself using the system to send infected emails and attachments to everyone users listed in the e-mail program address book. The attachments usually contain a virus of some kind that will begin infecting your hard drive when the file is opened. You need to be very careful before opening any attachment that ends with “exe” or “pif”. Even if the file appears to be from a trusted source, make sure the antivirus software on your hard drive is up-to-date and scan the attachment before opening the document.
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