I recognize it as a registry file, but I am not sure what it means. "Nav Cancel" runs in line with the error messages we have been getting from other browsers. He recently installed avast! and it scanned clean. His computer is running abnormally slow, though, so there might be something there after all. I know that a free virus scanner is not a final diagnosis to the actual health of a computer.
Anyway, I was wondering if anyone else has encountered this...? Again, this happens with every directory... but the most interesting part is that once the browser is initialized and running, after he clicks away the error messages, he can continue browsing his directories like normal. I don't understand what is going on at all.
He is running Vista Home Premium (32b).