previews/viewing CR2DNG converted DNGs in Windows Explorer without PINK/MAGENTA?

[jodaboda]

Previews of my dual-iso files (Cr2 converted with CR2DNG to DNG) have a crazy magenta coloring.  Has anyone found a way to adequately view these? 

I just tried Fast Picture Viewer and it didn't work.  The company was nice to respond:

"Sorry we only support CR2 files from the EOS Mk III and, as a side note, the DNG images you get most likely do not have a suitable JPEG preview and the codec falls back to a default conversion from an unknown camera. The cast you see is due to improper black-level calibration in what are essentially unknown files. "

https://dl.dropboxusercontent.com/u/8199415/screenshot.jpg

[jodaboda]

I found Ardfry Codecs to be faster and better than Fast Picture Viewer.  I had to do a thorough uninstall/cleaning to get rid of Fast Picture Viewer, and now just use Ardfry.