In case you have a dual boot system, and you want to share files between both Linux and Windows, you have some different choices, one of then is to use a FAT32 partition which both windows and Linux can access, but here is another one, in which installing a Driver to the Windows (XP or Vista) you can access your ext2 or ext3 partition from the Windows, and off course you can do it also from Linux.

read how to here