7-zip has the ability to comprehend partition tables and disk images, but it also has the ability to read raw storage block devices in Windows.
If all you need is to get a handful of files off a linux or HFS partition, use 7-zip.
Run it as administrator, press the "\" key, then go up a directory (or press backspace). Go to "\\.\" and open the drive and then volume containing your Linux/other OS partition.
This also works with HFS+, and other weird filesystems (and their disk images, too). You can't edit the filesystem or change/add/delete files, though - only grab them from the filesystem.
Finally, you can take a full (uncompressed) disk image through this. I wouldn't recommend doing this with an active (mounted, booted or in-use) partition, but it's good for USBs and the like. From the same "\\.\" area, select the drive you want to image, press "Copy" in the top bar, and select a place to put it, with enough free space for the whole image.
You can also image a specific volume or partition. Double click (or right-click -> "Open Inside") the PhysicalDriveX you want to grab a partition from, and they will be neatly listed in the browser.
This works in Nanazip (as pictured), as well.
Lifted from Twitter.
