I didn't find a hosts file in the SysWOW64 folder, but I did find one in the "usual" place windows\system32\drivers\etc and I see it's NOT set to read-only. But when I try to edit it with notepad and save as "all files" rather than .txt (to avoid notepad giving it a .txt extension) it fails to save. It tells me I don't have permission (even though my user account is an administrator). Is there some reg trick to allow me to change it? I've got a bunch of mappings I want to put in there.