/ConfigurationSetLevel:{ |3|4} Optional. Specifies the configuration set level for a new unique AD LDS instance; the default ...

/ConfigurationSetLevel:{<2>|3|4}
Optional. Specifies the configuration set level for a new unique AD LDS instance; the default is Windows Server 2003 (2). The ConfigurationSetLevel cannot be set for a replica. A value of 2 specifies Windows Server 2003. A value of 3 specifies Windows Server 2008. A value of 4 specifies Windows Server 2008 R2.