 The structure of an INF file is very similar to that of an INI file; it contains various sections that specify the files to be copied, changes to the registry, etc.All INF files contain a codice_2 section with a codice_3 key-value pair specifying the version of Windows that the INF file is meant for.The signature is commonly codice_4 (for Windows 9x) or codice_5 (for Windows NT/2K/XP).