Vista - Launching processes with low priority?

Is it possible in PS to influence the priority of a launched process
(like start /low in DOS)?

Thorsten

If you have already launched application then you can change PriorityClass
property for process:

$a = gps powershell
$a.PriorityClass = "BelowNormal"

or with looping:
gps iexplore | %{$_.PriorityClass = "High"}

All acceptables values are here:
[vPodans] [Enum]::getNames("Diagnostics.ProcessPriorityClass")
Normal
Idle
High
RealTime
BelowNormal
AboveNormal

If you want to start a new process with custom priority, you can use
Win32_Process WMI class with ProcessPriority property (which represents
Win32_ProcessStartup class).
http://msdn.microsoft.com/en-us/libr...88(VS.85).aspx - Create Method
of the Win32_Process Class
http://msdn.microsoft.com/en-us/libr...75(VS.85).aspx -
Win32_ProcessStartup Class
--
WBR, Vadims Podans
MVP: PowerShell
PowerShell blog - www.sysadmins.lv

"Thorsten Albrecht" <route-to-nowhere@xxxxxx> rakstija zinojuma
"news:h06ju4t7sl94pupp2pb9bhg6nn3ah17etl@xxxxxx"...

Hi Thorsten,

I just know how to change the proiority of a running process. The simple version is ...
([wmi]'Win32_Process=172').SetPriority(16384)
at which 172 is the process id and 16384 is the new priority (see below).

To change multiple processes by a key value (e.g. process name) you can run this ...
Get-WmiObject Win32_process -filter 'name = "notepad.exe"' | foreach-object { $_.SetPriority(32) }

At last the list of priority codes ...
256 REALTIME
128 HIGH_PRIORITY
32768 ABOVE_NORMAL
32 NORMAL
16384 BELOW_NORMAL
64 IDLE

Good luck and regards from munich,
Uwe



Thorsten Albrecht wrote:

And for completeness sake, you can also directly use
System.Diagnostics.Process. There's minor drilldown necessary, working with
the System.Diagnostics.ProcessStartInfo subitem, but it does provide the
ability to completely control every aspect of the started process.


http://msdn.microsoft.com/en-us/libr...s.process.aspx
http://msdn.microsoft.com/en-us/libr...startinfo.aspx

"Vadims Podans [MVP]" <vpodans> wrote in message
news:Ocs9nhAwJHA.3676@xxxxxx

Uwe Kausch <UweKausch.News@xxxxxx> wrote:
Hi Uwe

thanks. Another possibility would be to start the powershell shell
itself with lower priority. Thus all child processes have the same low
priority.

Thorsten

On Apr 18, 2:09*am, Thorsten Albrecht <route-to-
nowh...@xxxxxx> wrote:(Oops, sent this the wrong way.)

$proc = [System.Diagnostics.Process]::Start("notepad.exe")
$proc.PriorityClass =
[System.Diagnostics.ProcessPriorityClass]::BelowNormal