NirSoft password and key retrieval utilities

NirSoft web site provides a unique collection of small and useful freeware utilities, all of them developed by Nir Sofer

http://www.nirsoft.net/utils/product_cd_key_viewer.html

http://www.nirsoft.net/utils/blue_screen_view.html

http://www.nirsoft.net/utils/mailpv.html

http://www.nirsoft.net/utils/web_browser_password.html

http://www.nirsoft.net/utils/pst_password.html

http://www.nirsoft.net/utils/dialupass.html