There are too many copies of Readme.txt scatter into different directories. They should all be merged into a single document.
Not all switches Mke2fs are documented, or documented incorrectly.
Documentation for DrvRemover.exe, Ext2 Volume Manager for Windows, mount.exe are non-existent.
The manual mentions the unmount tools, but unmount is not included with binary package. For that matter, neither is the offline documentation for mount.exe.
The degree of ext2/3 file system support is not clearly documented. Although the progress is recorded in Revision history, what Ext2Fsd needs is a clearly defined implemetation check list. The checklist is in the recently redesigned site, but the contents are not in the packages.
The document lists 2 different home pages for Ext2Fsd depending on different files. Currenty, the yeah.net site is non-existent. To minimize the chance of error, contents of the manuals should be merged.