Preme for Windows - Speeds up your window switching.
VLC Media Player - VLC is a free and open source cross-platform multimedia player and framework.
GridMove - GridMove - A window management tool that can quickly arrange your windows into desktop grids.
foobar2000 - An advanced freeware audio player for the Windows platform.
WinDock - WinDock is a window manager ideal for large, or multi-monitor setups. Features:
Winamp - Winamp is a media player that allows users to play multiple-file formats, arrange media in a varied file-management system, and play unique media with AAC encoding.