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:

Writefile return ACCESS_DENIED on shared network

Gova_GimerGova_Gimer Member - All Emails Posts: 43
I'am on my driver filesystem and i share a directory of my disk.
I share a directory from my virtual disk , i see my network share.

Problem :
WriteFile return error ACCESS_DENIED on a file shared network of my virtual disk filesystem

Why ?


  • Gova_GimerGova_Gimer Member - All Emails Posts: 43
    I added :
    When i copy file "API runtime 'CopyFileEx'" from native disk into network directory shared disk filesystem, it's OK IRP_MJ_WRITE return STATUS_SUCCESS,

    problem asynchronous ??
  • Gova_GimerGova_Gimer Member - All Emails Posts: 43
    My problem is :
    The IRP_MJ_WRITE is not called only on a file from shared directory virtual disk filesystem.

    I tested with FileTest , IRP_MJ_WRITE is called if 'DesiredAccess' passed into 'NtCreateFile' has not bit DELETE (0x10000).

    I have this problem only if it's a file from shared directory of virtual disk.

    I had shared the directory with right write, read with the user 'everyone'
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