I have decided to host my HTZ and DLF tools here

The Linux versions of both the HTZ and DLF tools require the Qt runtime library, which you can obtain here:
http://prdownloads.sourceforge.net/skyc ... z?download
The Windows version of the DLF tool also requires a Qt runtime library, available here:
http://www.efg2.com/Lab/Library/Kylix/qtintf70.zip