Meanwhile I have bought a perfectly legal retail version of StuffIt Deluxe 5.01.

However, in May 1999 Aladdin released a free update to Deluxe 5.1

http://db.tidbits.com/article/5378

Unfortunately, the 1999 download link is no longer valid. Anybody out there who can help me and give the installer to me? I expect it to accept my existing license key.

UFK