Olympus has made a program available which imports and displays RAW files in Windows Vista. The codec is compatible with the following models:

E-1, E-3*, E-300, E-330, E-400, E-410, E-500 , E-510 , E-10, E-20, C-70 ZOOM, C-5050ZOOM, C-5060 Wide Zoom, C-7070 Wide Zoom, C-8080 Wide Zoom, SP-310, SP-320, SP-350, SP-500UZ, SP-510UZ, SP-550UZ, SP-560UZ

*A part of the parameter does not apply to RAW developing of images

To download the codec and for more information click here.