filezilla: uninstaller spawns Un_A.exe which we potentiallly need to wait for

Unless I run Procmon when 'uninstall.exe /S' is run I never see the process Un_A.exe. This is running on a Dell OptiPlex 7070, ~3 months old.

The fact you're seeing the process spawn means the extra step is worth adding, then. If Un_A.exe terminates rapidly enough that your "wpkg /remove:pkg" was always returning success then adding the extra step will make no difference, but I was reliably having wpkg fail with "Package still installed" unless I wait for that child process.

Agree, it just means that for every uninstall that isn't an msi I'll need to run Procmon to look for a spawned process.

I don't think that's needed as a default step - most uninstallers I use work just fine with no further effort. I only ever go looking for child processes if, when testing, my wpkg /remove:pkg returns "Package still installed" but I then confirm that the uninstall was actually successful.

OK, that's what we'll do then. If I don't spot a spawned process as part of my testing then I'll leave the uninstaller as is without the 'spawn watch' script.