How do I silently uninstall an old version of FileLocator Pro (version 4.0)

Question

I need to upgrade our FileLocator Pro installations from version 4 to the latest version but because the older version uses a different installer technology I notice that the old version needs to be separately uninstalled before installing the latest version.

So I'm trying to silently uninstall FLPro v4 via SCCM by executing the file:

"C:\Program Files\Mythicsoft\FileLocator Pro\unins000.exe" /VERYSILENT

but it pops up with a message:

Do you want to also remove all the user data associated with FileLocator Pro?

How do I supress this dialog?

Answer 1

Yes, FileLocator Pro switched to using MSI based installers from version 6. Upgrading from versions prior to version 6 requires first separately uninstalling the old version.

The program that actually produces that message is an uninstaller helper EXE

C:\Program Files\Mythicsoft\FileLocator Pro\uninst_flp.exe

The helper app looks to see if the folder FileLocatorPro exists in the user's local app data folder (CSIDL_LOCAL_APPDATA), e.g.

C:\Users\joebloggs\AppData\Local\FileLocatorPro

I was going to propose that you could try deleting that folder before uninstalling but unfortunately that doesn't work. The only real solution is to delete the helper app uninst_flp.exe. It's not perfect because it will leave a few registry options but that won't be a problem if you're going to be installing a new version anyway.

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Upgrading FileLocator Pro v6 (or higher)

Installations of FileLocator Pro version 6 and higher can be updated in-place, ie the installer takes care of uninstalling the previous version.