Originally posted by jeffkrol One of the bothersome things is why not port these backwards? Why the refusal to add this to XP, or other OS iterations (OK a Codec for Win 98SE is silly to some).
Is it technological or marketing decision???? My guess, just marketing.
Part of this I can answer at least - it's a Windows Imaging Component codec. WIC requires at least Vista, or XP SP2 w/ .Net 3.0. So that's the hard cutoff - nothing prior to XP, period. I'm also of the understanding that the shell and photo previewer in XP do not use WIC, so that means the codec isn't terribly useful for XP at all.
What I'm saying then, is that Pentax would have to write TWO separate pieces of software - the WIC codec for Vista, and then a separate shell extension for thumbnail viewing on XP.
Just marketing? Not really, more like careful spending of R&D money.