Explore2fs is a GUI explorer tool for accessing ext2 and ext3 filesystems. It runs under all versions of Windows and can read almost any ext2 and ext3 filesystem

Explore2fs can be downloaded from http://www.chrysocome.net/explore2fs

related:

Virtual Volumes has the ability to read ReiserFS and many other filesystems

Current Features of Virtual Volumes:

• Supported by all versions of Windows (Vista is still Work In Progress)
• Read and Write LVM2 (linear stripes only)
• Read and Write EXT2/EXT3 (e2fsprogs/libext2fs)
• Read ReiserFS (rfstools)
• Read and Write Win32 filesystems (Win32 API)
• Read FAT12/FAT16/FAT32 without using Win32
• Read and Write software RAID0, RAID1 and RAID5
• Read and Write via SFTP
• Read and Write VMWare disks
• VFS allows mounting on subdirectories
• VFS abstraction allows multiple filesystems to be supported
• VFS abstraction allows network filesystems like ftp, http and scp to be supported
• Command line interface
• Drag & Drop GUI
• Auto detect available filesystems for GUI quickstart

Planned Features of Virtual Volumes:

• More filesystems (HFS, ISO9660, NTFS, ...)
• More file based filesystems (.zip, .tgz etc)
• Accessable in native namespace
• NT Kernel driver to enable IFS to read LVM2