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Re: I need Pnp guru advice: Win2000 refuses to unload- my WDM driver!

OSR_Community_User-35OSR_Community_User-35 Member Posts: 154
What's you're Start setting in your driver's registry key?

I'm working on a filter driver. If I set it to start on-demand (Start = 3),
it gets started to add devices I've registered to filter. If I don't
create any filter DOs, it gets unloaded.

But if I set it to start at boot (Start = 0), it gets loaded and stays
loaded whether or not I create DOs.

Dave Cox
Hewlett-Packard Co.
HPSO/SSMO (Santa Barbara)

-----Original Message-----
From: Matt A. [mailto:[email protected]]
Sent: Tuesday, April 04, 2000 10:40 AM
To: NT Developers Interest List
Subject: [ntdev] Re: I need Pnp guru advice: Win2000 refuses to unload
my WDM driver!

From: "Mathias Ellinger" <[email protected]>
Sent: Tuesday, April 04, 2000 4:08 AM

> Hello,
> > It doesn't seem my other code is somehow leaving those 4 references
> > because
> > I can run through whole install/uninstall multiple times (with the never
> > being unloaded of course) and the final DRIVER_OBJECT reference count is
> > always 4.
> I assume you have installed the unload function.

Of course.

> I have had the same problems
> with USB drivers. On the upper layer from USB driver I have some other

That's the thing, right now there is nothing more to my driver than
responding to AddDevice() and the various PnP IRPs through

There are no layers above me. I don't even try to open the driver from
user-mode. This is just a plain vanilla WDM PnP driver installed and
removed via the Add/Remove Hardware Wizard. Except it won't unload.

- Matt

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