I have been trying to install HAL 6.1 under Vista and I am having the same problem.  HAL 5. was running perfectly before and when I installed 6.1 it asked to uninstall HAL5.  The file that is not registered on my system is msinet.ocx.  I have been through microsoft site and others have had the problem with other applications.  Their advice has not worked yet.  I have uninstalled HAL, loaded the file, rebooted and reinstalled HAL. All in every order and combination I can think of.  Everything loads and when I try to open it, I get a notice it needs higher permission to open, OK and then the allow/disallow then the msinet.ocx statment pops up and nothing.  I would really appreciate some advice.  Other wise I guess it back to HAL5 and wiat until I can find a way around the problem.
Frosty