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:

Converting NT path to DOS path with a UNICODE_STRING

muniateguimuniategui Member Posts: 12
edited January 13 in NTFSD

Hi, i'm making a minifilter to monitor when images are mapped in a certain path. In order to do that i'm using the PloadImageNotifyRoutine callback registered by PsSetLoadImageNotifyRoutine.
The problem i have is that when the callback is called i have an UNICODE_STRING with a NT path like \Device\HarddiskVolume6. I would like to get the corresponding letter to this device in order to compare it with the path i want to monitor. How can i convert it (or convert the DOS path to an NT one) in order to compare them?


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