In one of my integration tests, I have two threads that uninstall then install a program but when run in sequence they generate an error Failed to grab execution mutex. System error 258.
To get around this I have to sleep after the uninstall. I tried checking if the msiexec process was running but there were consistently 2-3 so it's not a good indicator. Is there a way to check if the msiexec execution mutex is available?
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