For backing up and restoring MySQL database on WAMP server no fancy tools are needed. Out of the box command line tools will do all you need:
Dump database :
[path to wamp mysql bin directory]\bin\mysqldump -u[user]-p[password] [database name] > [destination file]
For example
C:\wamp64\bin\mysql\mysql5.6.17\bin\mysqldump -uroot -p mydatabase > c:\temp\mydatabase.sql
And restoring same thing back:
[path to wamp mysql bin directory]\bin\mysql.exe -u[user]-p[password] [database name] < [destination file]
For example
C:\wamp64\bin\mysql\mysql5.6.17\bin\mysql.exe -u root -p mydatabase < c:\temp\mydatabase.sql