I used the Hal reader on a regular basis on a Windows 2000 machine and a Windows XP machine. When I switched to Windows 7 I redownloaded the software and that's when I couldn't find the registration code. I emailed their support back then, but they never responded (several times in 2009). I was able to access the program on my Window XP machine, which was working up until recently. So now, I'm trying to contact their support again. Still no response.
Which support email are you using? This is the only one that I have: order@zabaware.com. It doesn't bounce so I thought it should be good to go.