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OSRONLINE is OSR's Legacy Community Site

For information about our OSR's seminars and services, please visit our Corporate site at http://www.osr.com.

Welcome to OSR's original community web site, named "OSRONLINE." Established back in 2004, it contains articles from the first ten years from The NT Insider, as well as other historical content.

Today, this site still hosts and maintains two active imporant functions: We will eventually be moving these functions (and all the old OSRONLINE.COM content) to a modern (and far less ugly) site that we've been developing. That will take us quite a while. Until that time, we maintain this site for your use.

New, up-to-date posts in the OSR's staff's Developer's Blog can be found on our new Corporate site. All the content from The NT Insider (OSR's journal of Windows system software development) can also be found on OSR.COM.

To access the new OSR Corporate site please visit http://www.osr.com.
OSR Dev Blog posts are now being created and posted at http://www.osr.com/developers-blog/. Please check that location for future posts. We are listing the most recent posts from that site here, as a convenience. See the full list of our blog posts here.
Of Windows, Git, FUSE, and Moral Equivalence
It’s a known fact these days that Microsoft is feeling the Git love. As stated by Read more

Unexpected Case of Bugcheck IRQL_UNEXPECTED_VALUE (C8)
Yet another interesting case lands on our doorstep thanks to NTDEV (original post here). I Read more

WDK Problem Fixed, Plus Preview Access For All
[Last updated 24 October 2016, 11:00 Eastern time — Fix broken link] I wanted to update you Read more

C Is Not Reasonable
Those of you who’ve read my Pontifications over the years know that the things that Read more

Debugging Target RS1? Good Luck!
[Last updated 31 Aug 2016, 16:11 Eastern time] Update: As of 31 August 2016, we have Read more

The NT Insider Digital Edition - May-June 2016 Now Available!   Last Updated: 01-Jun-16  (Read 6484 times)

The NT Insider May-June 2016 The May-June 2016 issue of The NT Insider is available exclusively in PDF format for download. Click the image of The NT Insider to the left for the details, and the download link to use.

Articles include:

- Peter Pontificates: Computer Science Education: Yup, Still Sucks
- Introduction to Simple Peripheral Bus Devices and Drivers
- Tips for Using I/O Targets
- Today in Driver Signing
- Analyst's Perspective: My Driver Passes Driver Verifier! (Or Does It...)
- Bye-Bye Co-Installers>
...and more!

The NT Insider is moving to OSR.COM!   Last Updated: 14-Aug-14
To make way for an all new and much improved community web site, the primary home page for The NT Insider has moved to a dedicated section on OSR's corporate web site at http://www.osr.com/nt-insider/. There, you'll find links to PDF versions of all recent issues of The NT Insider as well as HTML versions of recent articles.   Last Updated: 14-Aug-14

Driver Developer Help Forums (NTDEV, NTFSD, WINDBG)
What's going on in the community? Check out what people are talking about on the NTDEV, NTFSD, and WINDBG discussion forums.

Active for more than 20 years, these are the WDK forums for help with your Windows driver development or help with your file system filter driver projects. Unlike other online forums, you can participate via the web, via email, or even via news reader (if you remember what that is!). Ask a question, answer a question, or watch the discussion had by others. What are you waiting for... Click here to join the community now!

Suresh Patil: Coinstaller not run for offline image injection (1 msg, posted 4:19 ago)
Jan Bottorff: Re: Device Guard Windows 10 (1 msg)
Rahul Kumar: Device Gaurd Windwows 10 (6 msgs)
vinay kp: why getting zero multicast packet on miniport driver ? (1 msg)
Rabish Kumar: Re: Can LWF be used for DNS query resolution and map with process name (1 msg)
Daryl Fowlkes: Memory allocation peculiarity... (4 msgs)
abhijit mohanta: find file pointer in pre write operation (3 msgs)
Shamoel Ahmad: Instance Setup call back (3 msgs)
Peter Scott: Re[4]: Minifilter attach to locked volume? (Part 2) (1 msg)
Frank Rizzo: Re[3]: Minifilter attach to locked volume? (Part 2) (1 msg)
Peter Scott: Re[2]: Minifilter attach to locked volume? (Part 2) (1 msg)
Join the discussion!   Join the discussion!


Windows Internals and Software Driver Development

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Writing WDF Drivers I: Core Concepts

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Windows Internals and Software Driver Development

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