The obsolete versions of UPX are no longer made available as they serve no practical purpose:

• They contain critical bugs which make your compressed programs crash under Windows 2000/XP under certain runtime situations.
• They contain a number of other severe bugs.
• Unpacking of win32/pe programs packed with the obsolete versions has never been implemented, so they won't help you here either.

Index of /download/00-OLD-VERSIONS/obsolete

 Name                       Last modified      Size  Description
 Parent Directory                                -