[@i011254, Post #21]
Hi. I didn't have to do anything: I just set the file compatibility to Windows Vista (SP2) and ran the file as an administrator. If you have problems with UAC then I'm sorry, I can't help you, as my OS doesn't have UAC.
If this doesn't work for you, I recommend the YouTube video (
https://www.youtube.com/watch?v=OQiMHUMIEBY) as linked to by kilazzPOLAND. My sd400v stopped working today, probably as a result of a Windows update, and I was able to restore it to life using the procedure in that video.
I downloaded the modified 5.5 files from tinyupload.com so didn't need to bother with the Uniextract steps.