The hard part under Windows would be mounting a file as an ext4 filesystem, but if you can do that you win.
No kidding. Since the linux method failed miserably for me, I've decided to press forward with trying to do it on Windows. Problem is, I have yet to find any way to mount an ext4 filesystem on Windows. There are several options out there that will allow you to read ext4 filesystems on Windows, but not write. Any suggestions?