Sigh--etomi is/was a limewire clone (repackaged the free and opensource limewire to look like a different client). Check the fine print on the etomi site to find out what you were really paying for, but be ready to conclude you were scammed.
LimeWire will preview files with whatever your system tells it to use, so you need to find out how your system maps files to applications. If you use LimeWire now, posts in one of the forums at
http://www.gnutellaforums.com/forumd...p?s=&forumid=7 should get a better answer.
Oh--this is the Shareaza forum (another opensource p2p client). I don't think the guys who might be maintaining the RAZA code, if any are still left, have anything to do with etomi.
Perhaps the long thread at
http://www.gnutellaforums.com/showth...threadid=28751 can give more insight.