Installer=module[,entry point]
Specifies the name of the class installer for this device class. The module-and-entry-point-name is a character string that specifies the name of the dynamic-link library containing the installation function and optionally the exported name of the installation function. If the name of the function is given, it is given after the DLL name and is preceded by a comma.
This value is used in HLM\SYSTEM\CurrentControlSet\Services\Class\device-class.