Launch a Process, Create an Event Waiting for it to Complete, and Do Something When the Event Fires

create_file_on_process_complete.ps1

/******************************************************************************
Situation...

There is a DOS batch script named foo.bat in C:\temp\foo.bat. We want
******************************************************************************/

$things-todo-when-batchfile-completes = {
	new-item 'c:\temp\thinger-done.txt'
	Get-EventSubscriber | Unregister-Event
}

$file_run = Start-Process -FilePath ".\thing.bat" -PassThru

$job = register-objectevent -InputObject $file_run `
-eventname exited `
-SourceIdentifier test `
-Action $event_response