|When XFile returns this error, it means that the SSL encrypted site to which XFile has
made a request has an expired certificate. An XFile-initiated request may fail even though
a similar request made by the browser would succeed, because users often have their browsers configured
to ignore expired certificates.
(In IE, for example, the browser's response to expired certificates
can be controlled from Tools>Internet Options>Advanced>Security)
XFile, on the other hand, is configured by default
to cancel the transfer if a certificate is expired.