Development

Get WDK:

WDK (Windows Driver Kit) or ifskit are needed to build a kernel driver for Windows. You can get the kit through Microsoft connect website for free:
http://connect.microsoft.com

Get source code of Ext2Fsd:

Ext2Fsd source codes are managed by SVN (Subversion). You can checkout the whole  sources code tree via:
svn co https://ext2fsd.svn.sourceforge.net/svnroot/ext2fsd src

You could also checkout only latest codes rather than everything:
To download latest Ext2Fsd sources:
svn co https://ext2fsd.svn.sourceforge.net/svnroot/ext2fsd/trunk/ext3fsd Ext3Fsd

To download latest Ext2Mgr sources:
svn co https://ext2fsd.svn.sourceforge.net/svnroot/ext2fsd/trunk/ext2mgr Ext2Mgr

Optionally,  You can view the content of SVN repository via web through this url:
http://ext2fsd.svn.sourceforge.net/viewvc/ext2fsd