[vpn-help] BSOD after uninstalling Shrew with Novell Client installed

[kevin shrew-vpn]

On Fri, 7 May 2010 21:33:55 -0400
kevin shrew-vpn <klmlk at hotmail.com> wrote:

> On Wed, 05 May 2010 11:35:14 -0500
> Matthew Grooms <mgrooms at shrew.net> wrote:
> 
> > On 4/29/2010 2:59 PM, Kevin Macnaughton wrote:
> > >
> > > After uninstalling Shrew VPN (2.1.5 or 2.1.6b7) on a Windows XP
> > > machine that has the Novell Client installed, the next time the
> > > machine is restarted, Windows will crash to a BSOD on startup.
> > >
> > > The BSOD error:
> > > DRIVER_UNLOADED_WITHOUT_CANCELLING_PENDING_OPERATIONS 
> > > The guilty file: vfilter.sys
> > 
> > Hi Kevin,
> > 
> > I took a cursory look at this yesterday and I can definitely
> > reproduce the crash. However, I'm not entirely sure of the root
> > cause. I need to do more investigation and then I'll get back to
> > you.
> > 
> > -Matthew
> 
> Hi Matthew, thanks for the quick look and response!  I await the
> results of your testing and hope it does not turn out to be a
> difficult issue to resolve.

Hi Matthew, I have good news and other news.  The good news is that the
problem does not occur on Vista Business 32-bit with Shrew 2.1.5 or
2.1.6b7. I can add and remove Shrew with Novell Client 2 SP1 for
Vista/Win7 installed and the Blue Screen of Death does not occur.

The other testing news is that Novell does not work at all across a
Shrew 2.1.5 tunnel on Vista.  It keeps saying that "The tree or server
cannot be found." even though the server is both pingable and
resolvable.  Novell does work using Shrew 2.1.6b7 on Vista though.