SYSTEM_EXTENDED_THREAD_INFORMATION - NtDoc

#ifndef _NTEXAPI_H

// private
typedef struct _SYSTEM_EXTENDED_THREAD_INFORMATION
{
    SYSTEM_THREAD_INFORMATION ThreadInfo;
    ULONG_PTR StackBase;
    ULONG_PTR StackLimit;
    PVOID Win32StartAddress;
    PVOID TebBase; // since VISTA
    ULONG_PTR Reserved2;
    ULONG_PTR Reserved3;
    ULONG_PTR Reserved4;
} SYSTEM_EXTENDED_THREAD_INFORMATION, *PSYSTEM_EXTENDED_THREAD_INFORMATION;

#endif
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