Writing to ext3 fs from XP

[Hadders]

Hi all,
  Just wondering if anybody has had any experience of writing to an ext3 
partition within windows.

If found this driver, http://www.fs-driver.org/ . Sound goods, but only 
has ext2 support.

Does anybody know of anything similar for ext3?

Why? Because I'm thinking of setting up a 120GB RAID 1 (mirror) and want 
to share the mirror between Windows and Linux for backups.

Thanks.