Setting the MofImagePath Registry Value
A driver's schema can be published by including a compiled MOF resource in a separate file, such as a DLL, and setting MofImagePath in the registry to the path of that file. A schema published in this way can be updated without recompiling the driver.
To publish a driver's schema in a separate file:
Compile the MOF file as described in Compiling a Driver's MOF File.
Include the compiled MOF file as a resource in a file such as a DLL.
Add the MofImagePath registry value under the driver's Services key. For example, the following shows the registry value for a driver named DriverName:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services \DriverName MofImagePath "\SystemRoot\System32\Drivers\DriverNameMof.dll"
You can set this key in the driver's INF file, as follows:
; This is the Services section for the driver [Driver_service_install_section] AddReg=Driver_AddReg ; This is the Services AddReg section declared above. [Driver_AddReg] HKR,,MofImagePath,,DriverMof.dll