struct SECURITY_TOKEN_PROXY_DATA

typedef struct _SECURITY_TOKEN_PROXY_DATA
{
     ULONG Length;
     PROXY_CLASS ProxyClass;
     UNICODE_STRING PathInfo;
     ULONG ContainerMask;
     ULONG ObjectMask;
} SECURITY_TOKEN_PROXY_DATA, *PSECURITY_TOKEN_PROXY_DATA;

Windows Vista Kernel Structures