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: [Q] What does DRVO_LEGACY_DRIVER mean?

OSR_Community_UserOSR_Community_User Member Posts: 110,217
To: "NT Developers Interest List" <[email protected]>
Sent: Tuesday, April 11, 2000 2:59 PM

> Matt, did you simply update the dllcharacteristic in DriverEntry or were
> you able to change your source environment such that it came up set? If
> so, how?

I'm using Borland C++ 5.x to build the driver. I have a program that turns
the output Win32 DLL into a .sys file (just update some of the headers, redo
checksum, etc..). I added a line there to add the WDM flag to the
DllCharacteristics field.

- Matt
Sign In or Register to comment.

Howdy, Stranger!

It looks like you're new here. Sign in or register to get started.

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 13-17 May 2024 Live, Online
Developing Minifilters 1-5 Apr 2024 Live, Online
Internals & Software Drivers 11-15 Mar 2024 Live, Online
Writing WDF Drivers 26 Feb - 1 Mar 2024 Live, Online