クリップNOTE
http://www.ost-net.com/clipnoteA/clip01.html
Taskbar++
http://www.vector.co.jp/soft/winnt/util/se368498.html
Win Merge
http://winmerge.org/
CleanArchiver
http://www.sopht.jp/cleanarchiver/
Dropbox
http://www.getdropbox.jp/
CopyEXT – 拡張コピー
http://www.htosh.com/software/freesoft/copyext.html
WinTree
http://www.hs-jp.com/aska/wintree/index.htm