There were several "forks" of Nitro322 (Jared) / Amritius's Universal Extractor
note that Gora was very helpful much of the time towards Jared's final 1.6.1 release
1.6.5 aka 1.7 by Amrit / SevenOptimus was modified in the spirit of the one on legroom ("Open" au3 source)
Gora (& Ricktendo continued up to 184.108.40.206Y) and LonerD (up to DreamLair 2.1.1)
a.f.a.i.k. they seemed to enter a clone war (? why Gora withdrew further changes) both did not generally make their code changes openly obvious, however their "bin" changes were normally visible to the public.
Although the SevenOptimus code is NOT currently available on his site, I would suggest downloading his last public domain version from http://www.msfn.org/board/index.php?app ... h_id=38515
and add the latest updates to that.
Though you may wish to note that Amrit suggested he intended releasing a version 1.8.
Beware the number of requests for correction and expansion (especially InstallShield variants) which could involve more time than the other dev's above mentioned seem to now have time for ?