I'm not saying that their directory does not contain dead links. Ham radio is a dynamic world. Some resources disappear. New ones appear. Happens all the time. One attempts to keep up. Such is life! ;-)
It's actually remarkable that the DXZone Software Catalog has so few dead links! If you do find one, please tell the Webmaster.
My Favorite DXZone Categories
One of my favorite haunts is the Software Defined Radio category. I visit it regularly to see what's new in the brave new world of Ham SDR.
After all. SDR is what ham radio transceivers and receivers are morphing into! SDR heralds the next era of ham radio.
I confess that I'm also addicted to the Antenna Analysis section where I can usually find the ham radio freeware I'm looking for. What can I tell you? I also like to tinker with homemade antennas.
Searching Wider Horizons
You can also do a specific search on Google for " ham radio freeware " or " ham radio free software ".
By drilling down in the preliminary results of your search - adding a more specific keyword to your first keyword phrase - you have a good chance of finding the software you want ... if it's there!