Home › Forums › Discussions › Support Portal › Problem in inf file characteristics value with winpk filter › Re: Re: Problem in inf file characteristics value with winpk fil
From your post it is not clear what kind of driver do you try to install along with WinpkFilter. Is it NDIS LWF, NDIS IM or protocol driver?
Characteristics to use in INF depend on the type of your driver. For Windows Vista and higher WinpkFilter installs NDIS LWF filter driver and corresponding Characteristics value is NCF_LW_FILTER = 0x40000.
You are using NCF_NDIS_PROTOCOL|NCF_FILTER|NCF_NO_SERVICE = 0x4410, which an example can be used for the protocol part of NDIS IM driver.
So, if you are trying to install NDIS LWF driver you have to use NCF_LW_FILTER, if NDIS Intermediate then NCF_NDIS_PROTOCOL|NCF_FILTER|NCF_NO_SERVICE.
If you are trying to create the custom build of WinpkFilter NDIS LWF then besides changing driver name please note to generate new GUID to be used in common.h and in INF file (NetCfgInstanceId). This value uniquely identifies filter driver instance.