Yes. That seems to work. I thought that -C0 would take care of that for me...I'm just very glad that I don't have to deal with this crap!

\test\junk>perl -C0 -E"say Win32::GetLongPathName( $_ ) for glob '*'"
acent�.txt
Wide character in print at -e line 1.
ελληνικά
ικά
�

C:\test\junk>perl -MEncode -E "say encode('UTF-8', Win32::GetLongPathName( $_ ) ) for glob '*'"
acentó.txt

ελληνικά
ικά
�

C:\test\junk>dir
12/11/2010 05:58 7 acentó.txt
20/11/2010 09:46 <DIR> ελληνικά