Possible Duplicate:

How to read ext4 and btrfs partitions in Windows?

I installed Ubuntu 11.04 sometimes back within Windows 7 using wubi. Lately, I turned off my computer while ubuntu was shutting down. Since then Whenever i try booting ubuntu, I get a Segmentation fault error and busy box opens by default. Since I have crucial data on ubuntu disk, I want to access the ubuntu files from Windows 7. Is there any software which allows me to do so?

Note: For ubuntu installed within windows, all the data is stored in a file root.disk. One way to read it is by using ext2explore.