```java
public enum WitnessServiceType {
    CLUSTER_WITNESS,     // Cluster-aware witness service
    FILE_SERVER_WITNESS, // Individual file server witness
    SCALE_OUT_WITNESS,   // Scale-out file server witness
    DFS_WITNESS         // DFS namespace witness
}

public enum WitnessVersion {
    VERSION_1(0x00010001),  // Windows Server 2012
    VERSION_2(0x00020000);  // Windows Server 2012 R2+
    
    private final int version;