asynchronous - Async WMI query for Win32_LocalTime does not fire events -

i of wmi queries asnyc , normally, have no problem them. setup manangementscope privileges , necessary dcom security [for remote queries]. little shorted snippet of whole code this:

managementpath mp = new managementpath(); mp.namespacepath = @"\root\cimv2"; mp.server = computername;  this.ms = new managementscope(mp, co);  //privs + dcom [outside] this.ms.connect();  eventquery eq = new eventquery(query); managementeventwatcher mew = new managementeventwatcher(this.ms, eq);  mew.eventarrived += new  eventarrivedeventhandler(this.oneventarrived); mew.stopped += new stoppedeventhandler(this.onstopped);  mew.start(); 

as mentioned, have problem this, :-( class queryed 'win32_localtime' , query starts, not give events. in wbemtest, works !

this query:

select * __instancemodificationevent targetinstance isa 'win32_localtime' 

one thing, see is, class singleton , have use special syntax specify singleton class in query, cannot figure out.

additionally, tried 1 async query powershell , worked. then, used ps query 'win32_localtime' , not work !!

a tip, hint or pointer further information great!

thanks far , best regards

++mabra

problem solved , "accidentally" .... ;-)

the problem in eventhandler. in that, accessing newevent.systemproperties["server"] null , thread dies without notice.

astounding, how many situation seeing, threads die without notice [i had same thing system.timers.timer , after debate, ms said, not change behavior :-( ].

until used show query, meant little "event diagnoser", have never seen systemproperties.server beeing empty :-(

i'll change code now.

anyway, best regards !

++mabra