bobics
16th July 2007 23:11 UTC

how to detect (and kill) if a process is running for *all* users?
I'm using FindProcDLL to detect if a process is running, but it appears it only detects it for the currently logged in user. In some cases this might be okay, but our app may be running with multiple users logged in (i.e. with Fast User Switching in XP).

At the minimum we'd like to detect if our app is running from another user's account. We may also want to kill the other user's process (which I assume should be pretty straightforward once I have the handle).

TIA,
bobics

kichik
17th July 2007 17:46 UTC

Have you tried one of the other process detection plug-ins?

bobics
17th July 2007 20:57 UTC

It took me some time but here are the results.

Of the plugins/sample scripts I tried, only nsProcess::FindProcess detected another user's process (and I think I picked one implementation out of every bucket). In case it might be helpful to anyone else, here's my sample script:

SetCompressor /solid lzma

!include "nsProcess.nsh"
!include "FindProcess.nsh"

;--- Project Settings --------
OutFile "setup.exe"

Section
SectionEnd

Function .onInit
        FindProcDLL::FindProc "firefox.exe"
        MessageBox MB_OK "FindProcDLL::FindProc = $R0 (found=1)"
        
        ${nsProcess::FindProcess} "firefox.exe" $0
        MessageBox MB_OK "nsProcess::FindProcess = $0 (found=0)"
        
        Processes::FindProcess "firefox.exe"
        MessageBox MB_OK "Processes::FindProcess = $R0 (found=1)"
        ;Call listProcesses

        FindWindow $0 "MozillaUIWindowClass" ""
        MessageBox MB_OK "FindWindow = $0 (found<>0)"
        
        ${FindProcess} "firefox.exe" $0
        MessageBox MB_OK "FindProcess = $0 (found=1)"
        
        ;I think there's a bug in fct, it just kills the process
        fct::fct /MSGONLY /QUESTION "Terminate?" /WC "MozillaUIWindowClass" /WTP "Firefox"
        
        abort
FunctionEnd