Ive read this article https://support.Winhost.com/kb/a649...main-to-a-subdirectory.aspx?KBSearchID=579462 but I don't know where to save the file and what it should be called?
The rule has to be placed in the default document within the root of the site account. The default document can sometimes be called "Default.aspx" "Default.asp" "index.aspx" "index.asp". Basically, it's the first page that gets loaded when you visit the site. That's were the code should go.