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I'm running a Visual Studio post build event that shuts down IIS if it's still running after compilation:

taskkill /f /im w3wp.exe

The following works perfectly if IIS is still running, but throws an error if it has already stopped:

Error 1 The process "w3wp.exe" not found. xxx\EXEC

Is there a way to tell taskkill to ignore the problem if it can't find a matching running process?

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up vote 18 down vote accepted

Instead of running one command, would running a small batch file work instead?

tasklist /FI "IMAGENAME eq w3wp.exe" 2>NUL | find /I /N "w3wp.exe">NUL
if "%ERRORLEVEL%"=="0" taskkill /f /im w3wp.exe
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1  
perfect, thanks! – Luk Jan 13 '11 at 14:38

The solution I found to this was to run

START taskkill /f /im w3wp.exe

It returns a success from the START command, and any error thrown by TASKKILL is thrown in the new console window

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and if you want to wait for tasks to be killed before continuing with the batch file. simply add: START /wait taskkill /f /im w3wp.exe – jezternz Jan 20 at 23:04

Or, this will just return an info message if not found:

taskkill /f /im w3wp.exe /fi "memusage gt 2"

Info from: here

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This works well too:

taskkill /IM "w3wp.exe" /F /FI "STATUS eq RUNNING"
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