How to stop and not kill a process

I use AlwaysUP to run my exe in backround As System so when the process is killed or i receive some errors then AlwaysUP is set to wait 2 min. and restart again my .exe and this sound perfect. When I do not want this to happen,well when he finds the line FINISH in ''output.txt '' only then i want that AlwaysUP stop forever,this option only works when I do it manually and I would like this to happen automatically

There might be an option in AlwaysUp for that, but I could not detect any. One way is to stop AlwaysUp itself (kill it).
Restarting a process if a log file does not change within a timespan, and stopping the process if a condition is met, are contradictions you always will have issues with. You need a "restart if file does not change within x, except if file y exists".

yes yes yes sound amazing but for that i must talk with AlwaysUP owner?any otehr solution?

With the .bat script above i killed AlwaysUP.exe but is programmed to restart after 2 min. so the script is useless
Quelmo can u modify the : CheckFileChanged.exe ?
Tell me if you can do that,try please i know  you are a master!
Download:  https://www.coretechnologies.com/products/AlwaysUp/Plugins/CheckFileChanged.exe
Here the plugins page: https://www.coretechnologies.com/products/AlwaysUp/Plugins/
with usage

File y means ( STOP and not restart If inside ''output.txt'' finds the word ''FINISH.'')
Output.txt file is automatically output by AlwsyUP

Help with this!Writing your own Sanity Check Plugins
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This does not make sense. You run AlwaysUp to monitor other processes, and make sure they run 24/7. You do NOT run AlwaysUp itself in a loop. What process restarts it? Is AlwaysUp a service? Then you should stop the service instead:
   sc stop AlwaysUp
(or whatever the service name is).

I tried ur code:

C:\Windows\system32>sc stop AlwaysUp
[SC] OpenService FAILED 1060:
The specified service does not exist as an installed service.

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I want to stop it only when finds a specific line in output.txt

Writing your own Sanity Check Plugins
A Sanity Check Plugin can be an application written in any language (C++, C#, VB, Delphi, etc.) or can be DOS batch file. The only requirement is that it exits with a return code of:
0 when the check succeeds;
1 when the check fails and the application should be stopped and restarted as you have configured;
10 when the check fails and the computer should be rebooted;
100 when the check fails and your application should be stopped and not restarted

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so when finds the line FINISHED. inside Output.txt apply this code: 100
I use alwaysup/sanitycheck and this plugin: CheckFileChanged.exe

Stop/restart your application if a particular file has not changed for a while

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CheckFileChanged.exe "C:\myserver\output.txt" 2
So output changing and chaninging all the time,even if i receive the message: Credentials or Finished  then i want to stop it if i don't do that alwaysup run my script forever

Sorry for not replying. I cannot help further with this task, as I would need to know much more about AlwaysUp, and don't want to spend the effort.
If there is a simple method (another plug-in?) to check for a "stop" file, and you can find such, then I'm willing to add the extra logic.

perhaps another script i.e. this powershell script will do the job

$forever = $true
do {
     $check = get-content "C:\myserver\output.txt"
      if $check -eq "Finished" {
            start-process &“C:\Program Files\AlwaysUp\AlwaysUp.exe” -stop MyServer
             $forever= $false
              }
       else {start-sleep -seconds 10 }
} while ($forever)

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thank you