Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

Windows NT DDK: ZwFsControlFile and other Zw functions?

Posted on 1997-05-22
2
Medium Priority
?
641 Views
Last Modified: 2013-12-03
Some Windows NT (not from Microsoft) drivers contain
calls of undocumented in NT4.0 DDK functions.
ZwFsControlFile is only one of them.
Do anybody knows if any documentation on this subject is available, or it even doesn't worth to try to find it?
Thank you in advance,
Sergey
0
Comment
Question by:Frolov
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
2 Comments
 
LVL 2

Accepted Solution

by:
amartin030297 earned 300 total points
ID: 1397607
ZW file control is the kernel mode version for file I/O
(ZwCreateFile/ZwWrite/ZwRead/etc)..  They are VERY important
functions and are part of Windows NT, Memphis, etc.. and they
are documented with the WDM documentation (provided you are
under NDA w/M$).
  And YES its worth finding more about if your writing drivers.

      --Aaron
0
 

Author Comment

by:Frolov
ID: 1397608
Dear Aaron,

Thank you for your answer on my question. I'd like to grade your
answer as Excellent, the only things remains not very clear for
me (excuse me if I don't know may be so obvious terms).

You wrote:
"they are documented with the WDM documentation (provided you are
under NDA w/M$)."

Could you be so pleased to clarify what is:
a) WDM ?
b) NDA (Non Disclosure Agreement?)
c) w/M$ (without much money?)
d) How to start with getting this WDM?

Thank you again,
Sergey

0

Featured Post

Get your Conversational Ransomware Defense e‑book

This e-book gives you an insight into the ransomware threat and reviews the fundamentals of top-notch ransomware preparedness and recovery. To help you protect yourself and your organization. The initial infection may be inevitable, so the best protection is to be fully prepared.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This tutorial is about how to put some of your C++ program's functionality into a standard DLL, and how to make working with the EXE and the DLL simple and seamless.   We'll be using Microsoft Visual Studio 2008 and we will cut out the noise; that i…
This article describes a technique for converting RTF (Rich Text Format) data to HTML and provides C++ source that does it all in just a few lines of code. Although RTF is coming to be considered a "legacy" format, it is still in common use... po…
This is Part 3 in a 3-part series on Experts Exchange to discuss error handling in VBA code written for Excel. Part 1 of this series discussed basic error handling code using VBA. http://www.experts-exchange.com/videos/1478/Excel-Error-Handlin…
In this brief tutorial Pawel from AdRem Software explains how you can quickly find out which services are running on your network, or what are the IP addresses of servers responsible for each service. Software used is freeware NetCrunch Tools (https…

705 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question