I installed the trial version of Adobe Media Encoder CS6 (Actually the whole CS6 Master Collection) just so that I could try exporting a video as a DPX image sequence. The installation took about 90 minutes. After opening Adobe Media Encoder and adding my source file I discovered that I couldn't export to any kind of image sequence:

Although they appear in the list of presets, they have no options beneath them and whichever one you select the Apply Preset button remains grayed out:

I watched a tutorial video on the Adobe Web site to make sure I wasn't missing something, but it made it very clear that it was as easy as selecting a preset, so why couldn't I select one of the image sequences? Google helped me find other people with the same problem, but no solutions. Eventually, however I did find the write combination of search terms and found a solution here.

Find the file named AddExporterList.txt located at

C:\Program Files\Adobe\Adobe Media Encoder CS6\txt

Save an original copy somewhere else. Copy/Paste or delete as necessary to make the new file look like this:

# MediaCore Plugins

# AME Plugins

AudioWriter
WinMediaWriter

# AME Plugin Formats

MPEG4

H.264 Blu-ray

Hit save and restart AME. Voila! It worked for me and hopefully it will work for you. My Export options are now greatly expanded:

The old AddExporterList.txt which was not working, looked like this:

# MediaCore Plugins

ExporterAIFF
ExporterAVI
ExporterBMP
ExporterCIT
CITExporter
ExporterDPX
ExporterGIF
ExporterGIFStill
ExporterJPEG
ExporterCoreAudio
ExporterNULL
ExporterP2
ExporterPNG
ExporterQuickTimeHost
ExporterTarga
ExporterTIFF
ExporterUncompressed
ExporterWave
ExporterWindowsMedia
ExporterXDCAMHD

# MediaCore Plugin Formats. Syntax: ExporterName.ZeroBasedIndexToBlacklist

ExporterMPEG4.1
ExporterMPEG4.2
ExporterMPEG4.3

# AME Plugins

AudioWriter
WinMediaWriter

# AME Plugin Formats

MPEG4
H.264 Blu-ray