Wild chars in a URL with idHTTP

Hi,

is there a way to ask from idHTTP to download a file giving it only a part
of the filename ?
e.g  idHTTP.get('ABCD*',someStream).
I need this not to get all the matcing filenames (actually the filename is
unique) but to bypass a problem that i face with filenames that include
greek chars (unrecognised from HTTP).

thanks in advance