barret
How can i do this automagically (batch)?
Download Hugin
http://downloads.sourceforge.net/hugin/hugin-0.7.0_win32-setup.exe?modtime=1224543831&big_mirror=0
Choose the option to just install Enfuse\Enblend and the droplets.
On your desktop, create a shortcut to 'enfuse_droplet.bat'.
Mine looks like this "C:\Program Files\Hugin\bin\enfuse_droplet.bat"
Put your images into a folder, drag the folder onto the shortcut and when asked enter '3' for the number of images in each bracket.
I have just tried it, works fine.
David