headersMetadatacopyenum _SECURITY_IMPERSONATION_LEVEL { SecurityAnonymous = 0,/* 0x0 */ SecurityIdentification = 1,/* 0x1 */ SecurityImpersonation = 2,/* 0x2 */ SecurityDelegation = 3,/* 0x3 */};/* computed from WINNT.H, NT 4.0 SDK */