Windows System Software -- Consulting, Training, Development -- Unique Expertise, Guaranteed Results

Before Posting...
Please check out the Community Guidelines in the Announcements and Administration Category.

More Info on Driver Writing and Debugging

The free OSR Learning Library has more than 50 articles on a wide variety of topics about writing and debugging device drivers and Minifilters. From introductory level to advanced. All the articles have been recently reviewed and updated, and are written using the clear and definitive style you've come to expect from OSR over the years.

Check out The OSR Learning Library at:

RE: Strange redirector paths returned from filter under Win2K

OSR_Community_UserOSR_Community_User Member Posts: 110,217
Sorry. WIth regards to my ealier mail, I meant to state that the filter
driver under NT 4 returns a path like:


where X is the name of the mapped drive.

Any thoughts/knowledge to be imparted?



> -----Original Message-----
> From: Ivan Lewis-Coker
> Sent: Friday, March 03, 2000 4:29 PM
> To: 'ntfsd (E-mail)'; 'Ntdev (E-mail)'; 'Ntkernelmode (E-mail)'
> Subject: Strange redirector paths returned from filter
> under Win2K
> Hi,
> We're making Win2k modifications to a filter driver that
> works fine under NT 4 and also supports network redirectors.
> Now when a file - located across the network on a mapped
> network drive - is accessed under NT 4, what the driver
> returns is a UNC path to the file, eg:
> \bopeep\progs\visio\Visio32.EXE
> However, under Win2k, it always appears to return the following:
> \;<X>:1\bopeep\progs\visio\Visio32.EXE
> ...where <X> appears to be the mapped network drive.
> My question is; is this some new format which has been
> introduced in the Win2k kernel? Or is it something going
> wrong? And if it is a new feature, what is the syntax and in
> particular, what does the number after the colon signify?
> TIA,
> Ivan Lewis-Coker
> Software Developer
> AppSense Ltd
> Europa Way
> Bird Hall Lane
> Cheadle Heath
> Stockport
> SK3 0WY
> Tel: +44 (0) 0161 374 4095
> email: [email protected]
> www:
Sign In or Register to comment.

Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!

Upcoming OSR Seminars
OSR has suspended in-person seminars due to the Covid-19 outbreak. But, don't miss your training! Attend via the internet instead!
Kernel Debugging 30 Mar 2020 OSR Seminar Space
Developing Minifilters 15 Jun 2020 LIVE ONLINE
Writing WDF Drivers 22 June 2020 LIVE ONLINE
Internals & Software Drivers 28 Sept 2020 Dulles, VA