Registering a Class Installer
To register a class installer, add Installer32 and Icon entries to the registry for the class. Starting with Windows 2000, the operating system maintains a System\CurrentControlSet\Control\Class branch under HKEY_LOCAL_MACHINE for information about each class. The value of the key contains the localized description of the class.
You can specify the Installer32 and Icon registry entries in an INF file, by including an INF AddReg directive within by an INF ClassInstall32 section.