How to restore SEPM 12.1 Database from a sem5.db file

Hi everyone,

Recently our Symantec Embeded database can not be start and I have to uninstall and reinstall the SEPM (version 12.1 on windows server 2008 R2). I just follow this article: http://www.symantec.com/connect/articles/how-perform-disaster-recovery-without-database-backuprestore

After reinstall all clients and policies gone. However we still got the backup of sem5.db that working fine couple days ago from our HPDP backup system. The SEPM Database Backup and Restore Tool only allow us to restore on .zip file that created by itself (.db file is not allowed).  Does anybody know how to restore the embeded database from sem5.db file? 

Thanks in advance.

Regards,

Cao Binh Nguyen