sqlinstall.exe /QS /ACTION=Install /IACCEPTSQLSERVERLICENSETERMS /UpdateEnabled=1 /INSTANCENAME=Charm   /HIDECONSOLE=1 /FEATURES=SQL,Tools /SQLSVCACCOUNT="NT AUTHORITY\SYSTEM" /SQLSYSADMINACCOUNTS="BUILTIN\ADMINISTRATORS"  /SAPWD="Charm!@" /SECURITYMODE=SQL /SQLBACKUPDIR="C:\local\dbbak" /ADDCURRENTUSERASSQLADMIN /TCPENABLED=1