Free cross-platform media player without installation.
Download Portable VLC on RapidShare (15.3 MB)
(md5: d4bbd4e9002ec74703c5f9eb95821aba)
Extract and run VLCPortable.
If you drag'n drop a file on (or open with) VLCPortable: it will be opened in VLC.
Settings of installed VLC should be preserved.