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:

What is the performance difference between various FltCreate functions?

sn99sn99 Member Posts: 13

I don't know if broad questions like these are allowed here (If not, I would be grateful if you can point me to other places); But I could not find anything related to performance in the official documentation.

I am particularly talking about these two:

Do they work the same but just change the amount of features they provide without affecting performance?

Thanks for any helpful comments or pointers.


  • Scott_Noone_(OSR)Scott_Noone_(OSR) Administrator Posts: 3,556

    One of those creates a Filter Manager Communication Port for user <-> kernel communication. The other one opens a named pipe.

    They're entirely different so there's no way to compare the performance of the two...


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 30 January 2023 Live, Online
Developing Minifilters 20 March 2023 Live, Online
Internals & Software Drivers 17 April 2023 Live, Online
Writing WDF Drivers 22 May 2023 Live, Online