Hi,
I'm using ImpotRapide, the French Canadian localized version of Quicktax.
I was able to install it OK. the online registration worked OK, but for some reason, the update process does not.
I would perform the update, and then when I got back into the application the next time, it would ask for me to update again. I used a browser to download the update .exe from the Intuit's support section, and ran it as an "Install unsupported application" and that worked. So the update is ok.