Windows System Software -- Consulting, Training, Development -- Unique Expertise, Guaranteed Results

Home NTDEV

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: https://www.osr.com/osr-learning-library/


is InstallELAMCertificateInfo() only for production ? will not work for test certificate ?

swamyswamy Member Posts: 6

Hi OSR Team

I am working on protected services using ELAM driver. while going through the Microsoft document, it says InstallELAMCertificateInfo() can be used to register protected services without rebooting the system. but it needs reboot else InstasllElamCertificateInfo() is giving error 577 .

will InstasllElamCertificateInfo() work only in production certificate?.

I am using now test certificate for development environment which is created by makecert.exe tool with ELAM EKU.
e.g makecert.exe -a SHA256 -r -pe -ss PrivateCertStore -n "CN=TestElam" -eku 1.3.6.1.4.1.311.61.4.1,1.3.6.1.5.5.7.3.3 -sr localmachine c:\test\TestElam.cer

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 16-20 October 2023 Live, Online
Developing Minifilters 13-17 November 2023 Live, Online
Internals & Software Drivers 4-8 Dec 2023 Live, Online
Writing WDF Drivers 10-14 July 2023 Live, Online