As the language and platform-dependent component GUIDs changed and we
wish to retain the original destination folders and filenames the
RemoveExistingProducts custom action is now invoked differently
according to the version of the product we are upgrading.
When we are upgrading an old package with legacy component GUIDs, we're
uninstalling it before installing the new one.
When we will be upgrading a modern package with platform/language
dependent component GUIDs, we will remove the leftover components after
installing the new one.
This should deliver compatible upgrades of existing versions while
providing optimal upgrading in the future.
Signed-off-by: Simon Rozman <simon@rozman.si>
Simon Rozman
867ab0f149