Access Encryption

Question

Hi, I tried to use this logic

http://www.databasejournal.com/features/msaccess/article.php/3752701/Secure-Microsoft-Access-Passwords-and-Encryption-in-Access-2007.htm

I have an existing access database 2007, i want to encrypt it, when i tried to implement the 128-bit from the above link, unfortunately when i open the DB in notepad i don't see Microsoft cryptographic 1.0 encryption although i followed the exact steps.

Any inputs? Please help me with other approaches too.

Thanks in advance, Karthick