What backup strategy do you use for your code?

@echo off

echo Stop and start SQL Server
echo -------------------------

net stop "SQL Server (SQLEXPRESS)"
net stop "SQL Server (SQLSERVER2008)"
echo -----------------------------------------------------------
echo Back up running now... please wait.

"C:Program Files2BrightSparksSyncBackSyncBack.exe" c e-contents f-contents

echo Backing up done. Starting SQL Server...
echo -----------------------------------------------------------

net start "SQL Server (SQLEXPRESS)"
net start "SQL Server (SQLSERVER2008)"

echo -----------------------------------------------------------
echo Back up is done and SQL Server is running now.
echo -----------------------------------------------------------

pause