BackupEncryptionKey Method (WMI MSReportServer_ConfigurationSetting)
SQL Server 2012
Backs up the encryption key for the specified report server instance. The encryption key is stored encrypted with a password.
Namespace: root\Microsoft\SqlServer\ReportServer\<InstanceName>\v11\Admin
Platform: Windows Server 2003, Datacenter Edition; Windows Server 2003, Enterprise Edition; Windows Server 2003, Standard Edition; Windows Vista; Windows XP Professional with Service Pack 2 (SP2) or Service Pack 1 (SP1); or Windows 2000 (all versions)
