It turns out they are compressed EXE files (a look with hex editor showed ‘UPack’ by Dwing was the packer used). I found a trial of a program called ‘PE Explorer’ (google it) which can unpack such EXE files; so I unpacked them and scanned the unpacked versions and Avira says they’re clean.

DCC32.exe (unpacked): v15.0, circa 2002 (what version of Delphi IDE? Who knows)

omf2d.exe (unpacked):
C:\Documents and Settings\asdf\Desktop\DDDK004\unpacked>.\omf2d.exe /?

OMF2D 1.02 converts 32bit OMF to Delphi linkable OMF
Copyright (C) 2003 Radim Picha, http://www.anticracking.sk/EliCZ
OMF2D: Cannot open input file!

.. I suppose the antivirus companies nowadays just flag *any* PE executable packed with Dwing UPack as malware since a lot of virus/trojan writers use the lib to keep their malware small. But it really doesn’t, in itself, constitute a danger. I’d say this is a legit package, but someone really needs to re-dist it without packed EXEs so people don’t freak out. I guess I’ll post it somewhere in a fixed form

Hope that helps,
-Arghblarg

http://web.archive.org/web/*/http://hxdef.org/download/DDDK004.zip