SECURITY_QUALITY_OF_SERVICE

typedef struct _SECURITY_QUALITY_OF_SERVICE { /* sqos */

DWORD Length;

SECURITY_IMPERSONATION_LEVEL ImpersonationLevel;

SECURITY_CONTEXT_TRACKING_MODE ContextTrackingMode;

BOOLEAN EffectiveOnly;

} SECURITY_QUALITY_OF_SERVICE ;

The SECURITY_QUALITY_OF_SERVICE data structure and several related data types are used for server/client impersonation tasks.