Recently I tried installing HDAConnect3 on a Windows 2000 client (I know: old....), installation went well but it didn't connect. In the log I saw that it was trying to execute "C:/windows/system32/route -something". On Windows 2000 the systemfolder is still named 'WINNT', so this did not work. I just made a folder "C:/windows/system32" and copied 'route.exe' from the win 2000 folder into it. To my surprise it worked immediately.
So, although this probably isn't high on the priority list

Richard