https://bugs.freedesktop.org/show_bug.cgi?id=87540

            Bug ID: 87540
           Summary: Installer deletes previous installation's files even
                    when installed to different directory
           Product: LibreOffice
           Version: 4.4.0.0.beta2
          Hardware: x86-64 (AMD64)
                OS: Windows (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Installation
          Assignee: [email protected]
          Reporter: [email protected]

for version 4.4.0.1 prerelease  (although no doubt applies to all versions)

When installing to a new, different directory than previous installation,
installer still deletes all files in the old installation directory.

No program should delete files without first obtaining permission from the
user.  Obviously, if it were being installed over a previous version, it would
have to clobber the previous files.

Probably this is done to avoid having multiple dll's with the same name lying
around.  However, I suspect that is probably finessable by de-registering the
dll's.  If there is really no alternative, then the User should still be warned
that files are about to be deleted and asked for confirmation.  (In my case, I
would copy them to some backup location first.)

A related enhancement would be to have multiple functional installations
co-existing.  This is useful for testing new versions.  (If that is a duplicate
of some other bug, please do not mark this entire bug as a duplicate, unless
the file clobbering part is a separate bug as well -- I did not find any such
previously reported bug.)

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