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[THESE SCRIPTS ARE PROVIDED AS IS AND I DON'T GIVE ANY WARRANTY IF THEY WORK AND DO NOT DELETE YOUR PHOTOS, SO PLEASE TEST IT ON SOME COPIES FIRST!!!!]

I'd like to share my quick and very dirty way to get dual iso files from CF card as fast as possible.
Normal steps are:
1. Get files from CF cards (it's a long process for me especially with USB 2.0 card reader and some slow 30MB/s cards).
2. Process them by cr2hdr (I use the script provided by engardeknave (http://www.magiclantern.fm/forum/index.php?topic=8520.0) without any prefix as I get quite many dual-iso files without prefix).
3. Rename them (I use exif date based system that moves filename.cr2 into something like a:\2013\10\07\20131007T121930filename.cr2).
4. Find dual-iso .cr2s in those created dirs and move them to dualiso subdir (I want to see only generated dngs while browsing, if something goes wrong I can alway go to dualiso subdir for original).

This takes a looong time.

Here is a zip file containing cr2hdr.exe, exiftool.exe, dcraw.exe (9.19, not requiring cygwin1.dll) together with dualiso.vbs (altered script by engardeknave), commands.cmd (this calls cr2hdr.exe and changes names), and runiffiles.cmd (a loop that calls dualiso.vbs if there's any file left to process).

Now, put all those in one directory, upload all .cr2 files in the same dir and run dualiso.vbs (you can change maxprocs -- maximum number of running processes -- to different number at the beginning of dualiso.vbs). After some time you'll get all your files processed and put into different directories

Second method is even more dirty but gives you ability to run the script while getting files from the cards. Just start downloading from your card into the directory with the unzipped files and run runiffiles.cmd. The crazy script just checks constantly if there are any .cr2 files and calls dualiso.vbs then. So you can put all photos from several different cards and in the meantime the computer will process and rename them for you. You can leave the computer while moving the files and at the end everything will be done.

NOTES
THESE SCRIPTS ARE PROVIDED AS IS AND I DON'T GIVE ANY WARRANTY IF THEY WORK AND DO NOT DELETE YOUR PHOTOS, SO PLEASE TEST IT ON SOME COPIES FIRST!!!!

For Windows 9x and earlier you should probably change cmd.exe to command.com in dualiso.vbs (at the beginning)

DOWNLOAD (zip file)
http://bit.ly/dualisopack6

Version 4 (and previous) had a critical bug during renaming - mixed months with minutes. Sorry...

As I'm a hobbyist bird photographer (http://bit.ly/akumiszcza), I sometimes need to change to other subjects for a quick shots. While photographing something using AutoETTR/DualISO etc. this is pretty hard. Even if I change from M to Av mode, for instance, AutoETTR and DualISO still works producing most probably badly exposed photos (at least first series). Turning them off in ML takes precious seconds. What I would really love is one of the following:
1. Use the current option to swap between two different M settings by pressing SET or INFO (Expo Presets). Just adding ML options to it would suffice. One could quickly change from AutoETTR+DualISO to AutoExpose in M mode by pressing one button.
2. All ML options linked to current mode. There would be other options in M mode, other in Av and even Custom modes. One could just switch to Av to make a quick shot and come back to M mode for more "static" AutoETTR+DualISO. Besided, this would be great for videos, too. One could set all relevant Canon options (Jpeg instead of Raw, no auto-off) and video options to one of Custom modes. This could also mean some keys (like SET) could have different actions in different modes – for instance turning video recording in C1, but setting up AETTR in other modes.
3. If above is impossible then maybe: ability to link some options to given mode. For instance, an option in AutoETTR and DualISO to work only in M mode.