The following Windows plugins can be downloaded:

AT&T DejaVu Player npdjvu.exe to show DJVU-files
Iterated Systems Fraktal Image Viewer fvp16w32.exe to show fractal compressed pictures
Live Picture FlashPix Viewer lpviewer32.exe to show flashpix panoramas
Macromedia Flash Viewer Shockwave_Flash_Installer.exe to play Shockwave Flash files
Live Update Crescendo c30nnt.exe to play MIDI files
Real Networks Real Player r32_g20_1de.exe to play streaming media from RealNetworks
SGI Cosmo VRML Player CosmoPlayerInstall.exe to show VRML worlds
Blaxxun Contact blaxxunContact40.exe to show Multi User VRML wordls

Further information is available from:

DjVu http://djvu.research.att.com
Fraktale Kompression http://www.iterated.com
FlashPix http://www.livepicture.com
Flash http://www.macromedia.com
Midi http://www.liveupdate.com
RealVideo http://www.real.com
VRML http://cosmosoftware.com
VRML http://www.blaxxun.de