[wdmaudiodev] Re: Problem writing to endpoint property store using Standard user account on Vista
- From: Larry Osterman <Larry.Osterman@xxxxxxxxxxxxx>
- To: "wdmaudiodev@xxxxxxxxxxxxx" <wdmaudiodev@xxxxxxxxxxxxx>
- Date: Wed, 18 Oct 2006 07:00:59 -0700
That's correct. The endpoint property store is machine-wide and only
administrators can modify it. If you need to modify the endpoint property
store outside the mmsys.cpl framework, you need to run your applet elevated.
-----Original Message-----
From: wdmaudiodev-bounce@xxxxxxxxxxxxx
[mailto:wdmaudiodev-bounce@xxxxxxxxxxxxx] On Behalf Of Michael R. Preston
Sent: Tuesday, October 17, 2006 10:15 PM
To: wdmaudiodev@xxxxxxxxxxxxx
Subject: [wdmaudiodev] Problem writing to endpoint property store using
Standard user account on Vista
I'm seeing a problem writing to the endpoint property store from an
application or from a property page extension in the Sound control panel
when running on a Standard user account. When doing an
OpenPropertyStore() on the default endpoint's MMDevice with either
STGM_READWRITE or STGM_WRITE, the call fails. Opening the property
store with STGM_READ still works, though. However, the exact same code
(with STGM_READWRITE specified) works on an administrator account.
Could this be a problem with unsigned drivers or APOs? I noticed the
problem in RC1, and it's still there in RC2. The problem doesn't happen
with the built-in system effects, but does happen with my custom APO.
Anyone have any ideas?
Thanks,
Mike
--
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| Mike Preston | Home/Office: (360)756-1655 |
| E-mail: mike@xxxxxxxxxxxxxxxxxxx | Cell: (360)303-9331 |
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| The man who follows the crowd will usually get no |
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| likely to find himself in places no one has ever been. |
| -- Alan Ashley-Pitt |
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