Is there a downloadable codec which adds WTV capability to Vista, in the\nsame way that this codec is built into Windows 7? Just to add to the\ncomplication, the Vista PC that I want to play WTV files on is Vista\nBusiness (not Home Premium) so it doesn't have Windows Media Centre.\n\nAll the Google matches for "play WTV on Vista" talk about converting WTV to\nDVR-MS, since Vista of any edition can play DVR-MS innately. There's a\nMicrosoft hotfix for Vista, but this assumes that Vista has Media Centre -\nie that it's Home Premium. Would an upgrade of Media Player from V11 to V12\nhelp.\n\nIf there isn't a codec, I may have to convert from WTV on the Windows 7 PC\n(right click, "Convert to DVR-MS"), but that is a hassle. At present I\nrecord on Vista's Media Centre (on a different PC to the Vista laptop that\nI'm asking about), but it would be useful to standardise on using the\nWindows 7 PC (and ditch the Vista recording PC), giving the advantage that\nsubtitles are recorded in WTV format.\n\nIt would also be nice if any codec also allowed VideoRedo to edit WTV files\non the Vista laptop, in the same way that it does on Win 7.