Usage: DnsCmd /ZoneSetSKDState /ActiveKey ]|[/StandbyKey ]|[/NextKey - GUID identifying the SKD to set state for - signing ...

Usage: DnsCmd  /ZoneSetSKDState  
  [/ActiveKey ]|[/StandbyKey ]|[/NextKey ]
   -- GUID identifying the SKD to set state for
   -- signing key pointer string of the form ";"
    if KSP is Microsoft Software Key Storage Provider then  must be a
    certificate serial number; for all other KSPs  must be the key name;
    exactly one of /ActiveKey or /StandbyKey or /NextKey must be specified