Performance extension DLL not working in W2K8 unless in session 0
- From: Greg Williams <GregWilliams@xxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Fri, 13 Mar 2009 08:53:02 -0700
I have a performance extension DLL that provides performance counters to
Perfmon for a service I've developed. It has been working fine for several
releases on WinXP and W2K3. However, I'm having problems with it on W2K8
that "feels" security-related.
On W2K8, PerfMon seems to only be able to retrieve performance counter data
if I'm RDP'ed in with the /Admin switch (which means session 0, I think).
When directly connected to the machine or RDP'ing without /Admin, I can add
my performance counters to PerfMon but I never see any data (i.e. the data
values are always 0). I can be simultaneously running PerfMon in 2 sessions
(both logged in as the same Administrator user) and see performance data in
an RDP /Admin session but not see it in the other session. It's as if there
is something magical with session 0.
Can anyone shed some light on what might be going on here?
Also, if this is not the appropriate newsgroup to ask this question, please
point me to the correct newsgroup to post this question.
Thanks.
-- Greg
=====================
Greg Williams
Software Engineer
IBM Internet Security Systems
.
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