Don´t know about registration/license.....downloaded from the sellers link,upped to VT to scan it and created a mirror! Haven´t tried or tested myself ..... yet!
one of the FAQ's i found on the sales page
Q: My virusscanner is picking this software up and saying it isn't safe, why?
A: The way the software was coded it may spark some virusscanners to give out
false positives, the software is 100% clean and safe, just put it on the safe list
and you'll be good to go. Also that may be a sign to invest in a different scanner
that's more accurate!