How can I access EXT3 partitions on Windows 7?

"It is not the most elegant way, but Cooperative Linux works for me:

Cooperative Linux is the first working free and open source method for optimally running Linux on Microsoft Windows natively. More generally, Cooperative Linux (short-named coLinux) is a port of the Linux kernel that allows it to run cooperatively alongside another operating system on a single machine. For instance, it allows one to freely run Linux on Windows 2000/XP/Vista/7.

Here's a tutorial: Ext3, ReiserFS & XFS in Windows thanks to coLinux"

"Try to run in Vista compatibility mode as administrator.

There is also Linux Reader and Explore2fs which will allow you to access ext3 volumes."