Troubleshooting Service bin about onshutdown HOT 7 OPEN

try cmd.exe /C at the beginning of your shell command, you may have to double escape it for /C

from onshutdown.

Trying new strategy like so: New-Service OnShutdown -bin 'OnShutdown 5000 "cmd /c tv_off.lnk"' -start Automatic

I created a shortcut of tv_off.cmd in %systemroot%\System32 and confirmed that running cmd /c tv_off.lnk by itself on the command prompt works (without admin).

Unfortunately, it seems the script still doesn't fire when I shutdown my PC. I checked that the service is running first and increased the timeout to 5000. Not sure what I'm doing wrong, is there still a problem with the escaping?

EDIT:
This also didn't work: New-Service OnShutdown -bin 'OnShutdown 30000 "powershell -noninteractive -noprofile -c \"cmd /c tv_off.lnk\""' -start Automatic

from onshutdown.

after the service is started you can run this command from powershell to check how the command made it through from new-service

Get-WmiObject win32_process -filter 'Name="OnShutdown.exe"' | select CommandLine

everything between the quotes is passed to CreateProcess as-is, you can test that with the start command in powershell it should behave the same.

I don't think you can invoke shortcuts with CreateProcess - for that you'd want to change ServiceMain.cpp#L60 to be a call to ShellExecute instead of CreateProcess. That might also require that you allow the service to interact with the desktop but I'm not sure.

from onshutdown.

That command returns this: OnShutdown 30000 "powershell -noninteractive -noprofile -c \"cmd /c tv_off.lnk\""

Basically exactly the string I provided it. The Services app in Windows also reports the same string for the service.

I was using a shortcut due to dependencies in the source file's folder. I tried using a script instead, but still no dice: New-Service OnShutdown -bin 'OnShutdown 30000 "powershell -NonInteractive -ExecutionPolicy Bypass -File C:\Windows\System32\tv_off.ps1"' -StartupType Automatic

Invoking the script manually works, so I assume my string still isn't valid for CreateProcess.

By the way I really appreciate you helping me out, this seems to be my only solution to turn my TV off automatically haha.

from onshutdown.

the command string looks okay to me. I suggest adding some logging within tv_off.ps1 - you can confirm that your script is being executed and capture any errors preventing it from working

from onshutdown.

Running this command works and creates the txt file: powershell -NonInteractive -File C:\Windows\System32\tv_off.ps1 *> C:\Users\royll\Desktop\foo.txt

However, when shutting down my PC, the text file is not created. This is the exact command: New-Service OnShutdown -bin 'OnShutdown 30000 "powershell -NonInteractive -File C:\Windows\System32\tv_off.ps1 *> C:\Users\royll\Desktop\foo.txt"' -StartupType Automatic

I also tried just putting Stop-Computer at the end of my script and running that instead, but that causes a "different" shutdown to occur which prevents apps from starting before login.

from onshutdown.

*> doesn't seem to do anything when passed to powershell via createprocess, eg start-process powershell '-file test.ps1 *> test.txt' doesn't produce a file even though test.ps1 is executed. I think you'll need to add some debug code within the script to see what's going wrong.

from onshutdown.