further to my presentation last month, the second tool, Registax, has been updated. There is a beta revision of v.2 available here (http://aberrator.astronomy.net/registax/installregistax2.exe)
This is an excellent tool that's just got even better. My thanks to Cor Berrevoets for providing, absolutely free, this software to the amateur astronomy community.
and to reply to my own post, this is beta, so it is expected to have non-critical bugs. If you use it and think you can characterise any please let Cor know. The root of his web site is here (http://aberrator.astronomy.net/registax/)