The NT4_REPLICATION_STATE structure defines the replication state for Windows NT 4.0 operating system DCs, whose interpretation is specified in [MS-ADTS] section 3.1.1.7.1.

 typedef struct {
   LARGE_INTEGER SamSerialNumber;
   LARGE_INTEGER SamCreationTime;
   LARGE_INTEGER BuiltinSerialNumber;
   LARGE_INTEGER BuiltinCreationTime;
   LARGE_INTEGER LsaSerialNumber;
   LARGE_INTEGER LsaCreationTime;
 } NT4_REPLICATION_STATE;

SamSerialNumber: The Windows NT 4.0 replication update sequence number for the SAM database.

SamCreationTime: The time at which the Windows NT 4.0 replication update sequence number for the SAM database was set to 1.

BuiltinSerialNumber: The Windows NT 4.0 replication update sequence number for the built-in database.

BuiltinCreationTime: The time at which the Windows NT 4.0 replication update sequence number for the built-in database was set to 1.

LsaSerialNumber: The Windows NT 4.0 replication update sequence number for the local security authority (LSA) database.

LsaCreationTime: The time at which the Windows NT 4.0 replication update sequence number for the LSA database was set to 1.