SQL server backup and Exchange backup

I know those backup utility for SQL Server, Exchange, or Oracle or any other are not free.
Recently, someone told me there are two backup utility free to all. I’m not the geek, so anyone here give me some suggestions. Is it good or bad?
http://www.todo-backup.com/business/ms-sql-server-backup.htm
http://www.todo-backup.com/business/ms-exchange-server-backup.htm

Anyone here used these two? How about these two? Is it stable?

Help!