I have been doing more investigation using the NDIS Filter IM driver
sample from DifX 1.0 and this is what I have found. Note that I'm
actually using dpinst.exe from DifXTools version 1.1, but using the
sample from 1.0 since 1.1 only includes an NDIS Mux IM driver.

If I have a clean XP machine (no versions of an IM driver previously
installed) then using DPINST fails. An NDIS IM Filter driver package
requires the miniport .inf file to be placed into a subdirectory of the
protocol .inf file.

So, using the IM Filter Sample from the 1.0 kit, the file and directory
structure is:

dpinst.exe
netsf.inf
passthru.sys
NetworkIntermediate.cat
miniport\netsf_m.inf

Running dpinst.exe causes netsf.inf and passthru.sys to be copied to the
driver store directory, but not the miniport\netsf_m.inf. When dpinst
installs netsf.inf it creates OEMxx.inf and OEMxx.pnf entries in
%windir%\inf. A netsf_m.inf entry (or corresponding OEMyy.inf and .pnf)
is never created in %windir%\inf. Therefore, when netsf.inf is installed
it never binds the miniport component of the NDIS IM driver because it
can't find the miniport INF file, netsf_m.inf.

According to dpinst.log the installation is successful, but the miniport
is not bound.

Note that if I pre-copy over miniport\netsf_m.inf to %windir%\inf then
the installation proceeds as expected.

Any ideas? I might have to brute-force this and copy the miniport INF
file manually before the driver install occurs.

Dan

Re: ndis IM and DifXTools...again by Pavel

Pavel
Wed Nov 10 18:09:40 CST 2004

Send email to feedback address given in the difx documentation,
or post again using MSDN "managed newsgroups".
--PA

"Dan" <dmbren@verizon.net> wrote in message news:t49kd.52300$fF6.22827444@news4.srv.hcvlny.cv.net...
> I have been doing more investigation using the NDIS Filter IM driver
> sample from DifX 1.0 and this is what I have found. Note that I'm
> actually using dpinst.exe from DifXTools version 1.1, but using the
> sample from 1.0 since 1.1 only includes an NDIS Mux IM driver.
>
> If I have a clean XP machine (no versions of an IM driver previously
> installed) then using DPINST fails. An NDIS IM Filter driver package
> requires the miniport .inf file to be placed into a subdirectory of the
> protocol .inf file.
>
> So, using the IM Filter Sample from the 1.0 kit, the file and directory
> structure is:
>
> dpinst.exe
> netsf.inf
> passthru.sys
> NetworkIntermediate.cat
> miniport\netsf_m.inf
>
> Running dpinst.exe causes netsf.inf and passthru.sys to be copied to the
> driver store directory, but not the miniport\netsf_m.inf. When dpinst
> installs netsf.inf it creates OEMxx.inf and OEMxx.pnf entries in
> %windir%\inf. A netsf_m.inf entry (or corresponding OEMyy.inf and .pnf)
> is never created in %windir%\inf. Therefore, when netsf.inf is installed
> it never binds the miniport component of the NDIS IM driver because it
> can't find the miniport INF file, netsf_m.inf.
>
> According to dpinst.log the installation is successful, but the miniport
> is not bound.
>
> Note that if I pre-copy over miniport\netsf_m.inf to %windir%\inf then
> the installation proceeds as expected.
>
> Any ideas? I might have to brute-force this and copy the miniport INF
> file manually before the driver install occurs.
>
> Dan
>