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I thought that too but it fails even after giving it 60 seconds. I forgot to mention it but this happens even when run as administrator.

I've put together a simple version of the problem I'm stuck on which hopefully makes more sense than my original explanation. In this example file.cmd cannot be renamed by file_rename.cmd even after file.cmd has exited. @echo off @cd /d "%~dp0" @title %~f0 Set countdown=5 9>&2 2>nul (call :lockAndRe...

Hello, I've got a problem of my own making. A while back I created a bit of a monstrosity of a batch file to automate some tasks and I added this to stop multiple instances. @echo off 9>&2 2>nul (call :lockAndRestoreStdErr %* 8>>"%~f0") || ( echo Only one instance allowed - "%~f0" is already running...