[wdmaudiodev] Re: Audio Driver Code Signing for WIN10 ?

  • From: Tom Eckert <teckert@xxxxxxxxxxxxxxxx>
  • To: wdmaudiodev@xxxxxxxxxxxxx
  • Date: Thu, 8 Oct 2015 10:20:02 -0400

It's still working for us. But, while we're on the subject, can someone clarify this:

/What about existing drivers?Do I need to re-sign these drivers to
get them to work with Windows 10?/
//No, existing drivers do not need to be re-signed.To ensure
backwards compatibility, drivers which are properly signed by avalid
cross-signing certificate

was issued before the release of Windows 10 will continue to pass
signing checks on Windows 10.

Does this mean that drivers which are properly signed by a valid cross-signing certificate that was issued before the release of Windows 10 *but which are built and signed after the release date, grace period, whatever* will work or not? So, not existing drivers, but new drivers signed with a certificate that satisfies the above condition.


On 10/8/2015 9:34 AM, Vincent Burel (VB-Audio) wrote:

No, it does not work anymore on WIN10 release, this is what I’ve experimented last days when building a new driver version,

This is also explained there:



Vincent Burel

*De :*wdmaudiodev-bounce@xxxxxxxxxxxxx [mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] *De la part de* Tom Eckert
*Envoyé :* jeudi 8 octobre 2015 15:22
*À :* wdmaudiodev@xxxxxxxxxxxxx
*Objet :* [wdmaudiodev] Re: Audio Driver Code Signing for WIN10 ?

If you have a code signing certificate that was issued before the Win10 release date, you can continue to use it with the old driver signing method until it expires.

Tom Eckert

On 10/8/2015 3:02 AM, Vincent Burel (VB-Audio) wrote:


As far as I see; WIN10 does not allow Installation of driver
signed after its Release Date.

In other words, doing a driver package today for WIN10 is not
possible anymore without using the Microsoft Signing Services.

(please confirm or if there is a workaround? )

Consequently we need to register on Microsoft DashBoard
(https://sysdev.microsoft.com/) and sign different agreements…

*So I have basically 2 questions:*

What is the exact list of Agreements that must be signed to be
able to make code-signing on an audio driver ?

What is the technical and financial risk ? (some agreement are
about technical constraint , some other talk about paying
Microsoft for testing services).


Vincent Burel

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