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Re: How to know the process running under NT system

OSR_Community_UserOSR_Community_User Member Posts: 110,217
Documented way - use performance registry.
Be careful - doing this incorrectly can trigger loading ALL of the perfmon
DLLs in the system (for things like IIS & MSSQLServer, for instance).
This takes ~10 seconds. MSVC5 has this bug in its process list window.
Undocumented way - use NtQuerySystemInformation syscall. This is how
Resurce Kit utilities work.
See www.osr.com or www.sysinternals.com for details on the syscall (AFAIK
one of them described it).

Max

----- Original Message -----
From: Girish Kumar <[email protected]>
To: <[email protected]>
Sent: Wednesday, February 23, 2000 7:19 PM
Subject: [ntdev] How to know the process running under NT system


> Hello,
>
> From my application I need to know names and processId
> of all the processess running in the sytem...something
> like what task manager shows in his process view.
>
> How I do that...Any Api calls???
>
> Girish.
>
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> Talk to your friends online with Yahoo! Messenger.
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> [ To unsubscribe, send email to [email protected] with body
> UNSUBSCRIBE (the subject is ignored). ]
>

Comments

  • OSR_Community_UserOSR_Community_User Member Posts: 110,217
    Hi Girish,
    The PSAPI DLL exports a set of functions, which could be used to
    obtain the processes, Process IDs and the path names in the system.
    U do this in the following way,
    1. Call EnumProcesses
    2. Call EnumProcessesModules
    3. GetModuleBaseName, GetModuleFileNameEx

    If u have MSJ subscription, or if u'va got MSDN sub. then look into "Under
    the Hood" article in Aug '96 by Matt Pietrik. That's a good one that
    explains u how to do this.

    Regards,
    Chaitanya


    ----- Original Message -----
    From: Girish Kumar <[email protected]>
    To: <[email protected]>
    Sent: Wednesday, February 23, 2000 9:49 PM
    Subject: [ntdev] How to know the process running under NT system


    > Hello,
    >
    > >From my application I need to know names and processId
    > of all the processess running in the sytem...something
    > like what task manager shows in his process view.
    >
    > How I do that...Any Api calls???
    >
    > Girish.
    >
    > __________________________________________________
    > Do You Yahoo!?
    > Talk to your friends online with Yahoo! Messenger.
    > http://im.yahoo.com
    > - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    > [ To unsubscribe, send email to [email protected] with body
    > UNSUBSCRIBE (the subject is ignored). ]
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