Originally posted by das ist mein pentax Intel core 2 dou T6400 2.00 GHz, 4GB ram, vista 64 bit, version 2.0 of the Pentax programs.
Also any program that can read the pentax raw files will be just fine for me.
You don't need the Pentax programs to read PEF or DNG RAW formats. I rarely use them, especially since they have been consistently slow (to the point of freezing and crashing all the time - DCU3) to just crashing all the time (the latest DCU 4.1) on my XP Pro system.
Common freeware Windows imaging apps like FastStone Image Viewer or Picasa will happily read and convert Pentax PEF and DNG RAW formats. And great apps like Adobe's Lightroom will also do a wonderful job in helping you read and manipulate your Pentax RAW files.