.INF File Extension
File TypeSetup Information File
What is an INF file?
An INF file is a plain text configuration file that defines what files are installed with a certain software program or update. It may also list the location of the files and the directories where the files are to be installed. INF files are used by the Windows operating system, or by the program or installer that includes the INF file.
INF files are similar to .INI files and are commonly used to install device drivers. They contain the driver name and location, driver version information, and registry information.
Unfortunately, INF files can become infected by viruses since they may autorun without any prompting. To be safe, you should not attempt to open them manually.