// Address of the kernel function that calls out to user mode
    //
    DWORD64   KiCallUserMode;

    //
    // Address of the user mode dispatcher function
    //
    DWORD64   KeUserCallbackDispatcher;

    //
    // Lowest kernel mode address
    //
    DWORD64   SystemRangeStart;

    DWORD64  Reserved[8];

} KDHELP64, *PKDHELP64;

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)
#define KDHELP KDHELP64
#define PKDHELP PKDHELP64
#else
typedef struct _KDHELP {

    //
    // address of kernel thread object, as provided in the
    // WAIT_STATE_CHANGE packet.
    //
    DWORD   Thread;

    //
    // offset in thread object to pointer to the current callback frame
    // in kernel stack.
    //
    DWORD   ThCallbackStack;

    //
    // offsets to values in frame:
    //
    // address of next callback frame
    DWORD   NextCallback;

    // address of saved frame pointer (if applicable)
    DWORD   FramePointer;

    //
    // Address of the kernel function that calls out to user mode
    //
    DWORD   KiCallUserMode;

    //
    // Address of the user mode dispatcher function
    //
    DWORD   KeUserCallbackDispatcher;

    //
    // Lowest kernel mode address
    //
    DWORD   SystemRangeStart;

    //
    // offset in thread object to pointer to the current callback backing
    // store frame in kernel stack.
    //
    DWORD   ThCallbackBStore;

    DWORD  Reserved[8];

} KDHELP, *PKDHELP;

__inline
void
KdHelp32To64(
    PKDHELP p32,
    PKDHELP64 p64
    )
{
    p64->Thread = p32->Thread;
    p64->ThCallbackStack = p32->ThCallbackStack;
    p64->NextCallback = p32->NextCallback;
    p64->FramePointer = p32->FramePointer;
    p64->KiCallUserMode = p32->KiCallUserMode;
    p64->KeUserCallbackDispatcher = p32->KeUserCallbackDispatcher;
    p64->SystemRangeStart = p32->SystemRangeStart;
}
#endif

typedef struct _tagSTACKFRAME64 {
    ADDRESS64   AddrPC;               // program counter
    ADDRESS64   AddrReturn;           // return address
    ADDRESS64   AddrFrame;            // frame pointer
    ADDRESS64   AddrStack;            // stack pointer
    ADDRESS64   AddrBStore;           // backing store pointer
    PVOID       FuncTableEntry;       // pointer to pdata/fpo or NULL
    DWORD64     Params[4];            // possible arguments to the function
    BOOL        Far;                  // WOW far call
    BOOL        Virtual;              // is this a virtual frame?
    DWORD64     Reserved[3];
    KDHELP64    KdHelp;
} STACKFRAME64, *LPSTACKFRAME64;

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)
#define STACKFRAME STACKFRAME64
#define LPSTACKFRAME LPSTACKFRAME64
#else
typedef struct _tagSTACKFRAME {
    ADDRESS     AddrPC;               // program counter
    ADDRESS     AddrReturn;           // return address
    ADDRESS     AddrFrame;            // frame pointer
    ADDRESS     AddrStack;            // stack pointer
    PVOID       FuncTableEntry;       // pointer to pdata/fpo or NULL
    DWORD       Params[4];            // possible arguments to the function
    BOOL        Far;                  // WOW far call
    BOOL        Virtual;              // is this a virtual frame?
    DWORD       Reserved[3];
    KDHELP      KdHelp;
    ADDRESS     AddrBStore;           // backing store pointer
} STACKFRAME, *LPSTACKFRAME;
#endif


typedef
BOOL
(__stdcall *PREAD_PROCESS_MEMORY_ROUTINE64)(
    HANDLE      hProcess,
    DWORD64     qwBaseAddress,
    PVOID       lpBuffer,
    DWORD       nSize,
    LPDWORD     lpNumberOfBytesRead
    );

typedef
PVOID
(__stdcall *PFUNCTION_TABLE_ACCESS_ROUTINE64)(
    HANDLE  hProcess,
    DWORD64 AddrBase
    );

typedef
DWORD64
(__stdcall *PGET_MODULE_BASE_ROUTINE64)(
    HANDLE  hProcess,
    DWORD64 Address
    );

typedef
DWORD64
(__stdcall *PTRANSLATE_ADDRESS_ROUTINE64)(
    HANDLE    hProcess,
    HANDLE    hThread,
    LPADDRESS64 lpaddr
    );

BOOL
IMAGEAPI
StackWalk64(
    DWORD                             MachineType,
    HANDLE                            hProcess,
    HANDLE                            hThread,
    LPSTACKFRAME64                    StackFrame,
    PVOID                             ContextRecord,
    PREAD_PROCESS_MEMORY_ROUTINE64    ReadMemoryRoutine,
    PFUNCTION_TABLE_ACCESS_ROUTINE64  FunctionTableAccessRoutine,
    PGET_MODULE_BASE_ROUTINE64        GetModuleBaseRoutine,
    PTRANSLATE_ADDRESS_ROUTINE64      TranslateAddress
    );

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)

#define PREAD_PROCESS_MEMORY_ROUTINE PREAD_PROCESS_MEMORY_ROUTINE64
#define PFUNCTION_TABLE_ACCESS_ROUTINE PFUNCTION_TABLE_ACCESS_ROUTINE64
#define PGET_MODULE_BASE_ROUTINE PGET_MODULE_BASE_ROUTINE64
#define PTRANSLATE_ADDRESS_ROUTINE PTRANSLATE_ADDRESS_ROUTINE64

#define StackWalk StackWalk64

#else

typedef
BOOL
(__stdcall *PREAD_PROCESS_MEMORY_ROUTINE)(
    HANDLE  hProcess,
    DWORD   lpBaseAddress,
    PVOID   lpBuffer,
    DWORD   nSize,
    PDWORD  lpNumberOfBytesRead
    );

typedef
PVOID
(__stdcall *PFUNCTION_TABLE_ACCESS_ROUTINE)(
    HANDLE  hProcess,
    DWORD   AddrBase
    );

typedef
DWORD
(__stdcall *PGET_MODULE_BASE_ROUTINE)(
    HANDLE  hProcess,
    DWORD   Address
    );

typedef
DWORD
(__stdcall *PTRANSLATE_ADDRESS_ROUTINE)(
    HANDLE    hProcess,
    HANDLE    hThread,
    LPADDRESS lpaddr
    );

BOOL
IMAGEAPI
StackWalk(
    DWORD                             MachineType,
    HANDLE                            hProcess,
    HANDLE                            hThread,
    LPSTACKFRAME                      StackFrame,
    PVOID                             ContextRecord,
    PREAD_PROCESS_MEMORY_ROUTINE      ReadMemoryRoutine,
    PFUNCTION_TABLE_ACCESS_ROUTINE    FunctionTableAccessRoutine,
    PGET_MODULE_BASE_ROUTINE          GetModuleBaseRoutine,
    PTRANSLATE_ADDRESS_ROUTINE        TranslateAddress
    );

#endif


#define API_VERSION_NUMBER 9

typedef struct API_VERSION {
    USHORT  MajorVersion;
    USHORT  MinorVersion;
    USHORT  Revision;
    USHORT  Reserved;
} API_VERSION, *LPAPI_VERSION;

LPAPI_VERSION
IMAGEAPI
ImagehlpApiVersion(
    VOID
    );

LPAPI_VERSION
IMAGEAPI
ImagehlpApiVersionEx(
    LPAPI_VERSION AppVersion
    );

DWORD
IMAGEAPI
GetTimestampForLoadedLibrary(
    HMODULE Module
    );

//
// typedefs for function pointers
//
typedef BOOL
(CALLBACK *PSYM_ENUMMODULES_CALLBACK64)(
    PSTR ModuleName,
    DWORD64 BaseOfDll,
    PVOID UserContext
    );

typedef BOOL
(CALLBACK *PSYM_ENUMSYMBOLS_CALLBACK64)(
    PSTR SymbolName,
    DWORD64 SymbolAddress,
    ULONG SymbolSize,
    PVOID UserContext
    );

typedef BOOL
(CALLBACK *PSYM_ENUMSYMBOLS_CALLBACK64W)(
    PWSTR SymbolName,
    DWORD64 SymbolAddress,
    ULONG SymbolSize,
    PVOID UserContext
    );

typedef BOOL
(CALLBACK *PENUMLOADED_MODULES_CALLBACK64)(
    PSTR ModuleName,
    DWORD64 ModuleBase,
    ULONG ModuleSize,
    PVOID UserContext
    );

typedef BOOL
(CALLBACK *PSYMBOL_REGISTERED_CALLBACK64)(
    HANDLE  hProcess,
    ULONG   ActionCode,
    ULONG64 CallbackData,
    ULONG64 UserContext
    );

typedef
PVOID
(CALLBACK *PSYMBOL_FUNCENTRY_CALLBACK)(
    HANDLE  hProcess,
    DWORD   AddrBase,
    PVOID   UserContext
    );

typedef
PVOID
(CALLBACK *PSYMBOL_FUNCENTRY_CALLBACK64)(
    HANDLE  hProcess,
    ULONG64 AddrBase,
    ULONG64 UserContext
    );

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)

#define PSYM_ENUMMODULES_CALLBACK PSYM_ENUMMODULES_CALLBACK64
#define PSYM_ENUMSYMBOLS_CALLBACK PSYM_ENUMSYMBOLS_CALLBACK64
#define PSYM_ENUMSYMBOLS_CALLBACKW PSYM_ENUMSYMBOLS_CALLBACK64W
#define PENUMLOADED_MODULES_CALLBACK PENUMLOADED_MODULES_CALLBACK64
#define PSYMBOL_REGISTERED_CALLBACK PSYMBOL_REGISTERED_CALLBACK64
#define PSYMBOL_FUNCENTRY_CALLBACK PSYMBOL_FUNCENTRY_CALLBACK64

#else

typedef BOOL
(CALLBACK *PSYM_ENUMMODULES_CALLBACK)(
    PSTR  ModuleName,
    ULONG BaseOfDll,
    PVOID UserContext
    );

typedef BOOL
(CALLBACK *PSYM_ENUMSYMBOLS_CALLBACK)(
    PSTR  SymbolName,
    ULONG SymbolAddress,
    ULONG SymbolSize,
    PVOID UserContext
    );

typedef BOOL
(CALLBACK *PSYM_ENUMSYMBOLS_CALLBACKW)(
    PWSTR  SymbolName,
    ULONG SymbolAddress,
    ULONG SymbolSize,
    PVOID UserContext
    );

typedef BOOL
(CALLBACK *PENUMLOADED_MODULES_CALLBACK)(
    PSTR  ModuleName,
    ULONG ModuleBase,
    ULONG ModuleSize,
    PVOID UserContext
    );

typedef BOOL
(CALLBACK *PSYMBOL_REGISTERED_CALLBACK)(
    HANDLE  hProcess,
    ULONG   ActionCode,
    PVOID   CallbackData,
    PVOID   UserContext
    );

#endif


//
// flags found in SYMBOL_INFO.Flags
//

#define SYMFLAG_VALUEPRESENT     0x00000001
#define SYMFLAG_REGISTER         0x00000008
#define SYMFLAG_REGREL           0x00000010
#define SYMFLAG_FRAMEREL         0x00000020
#define SYMFLAG_PARAMETER        0x00000040
#define SYMFLAG_LOCAL            0x00000080
#define SYMFLAG_CONSTANT         0x00000100
#define SYMFLAG_EXPORT           0x00000200
#define SYMFLAG_FORWARDER        0x00000400
#define SYMFLAG_FUNCTION         0x00000800
#define SYMFLAG_VIRTUAL          0x00001000
#define SYMFLAG_THUNK            0x00002000
#define SYMFLAG_TLSREL           0x00004000

//
// symbol type enumeration
//
typedef enum {
    SymNone = 0,
    SymCoff,
    SymCv,
    SymPdb,
    SymExport,
    SymDeferred,
    SymSym,       // .sym file
    SymDia,
    SymVirtual,
    NumSymTypes
} SYM_TYPE;

//
// symbol data structure
//

typedef struct _IMAGEHLP_SYMBOL64 {
    DWORD                       SizeOfStruct;           // set to sizeof(IMAGEHLP_SYMBOL64)
    DWORD64                     Address;                // virtual address including dll base address
    DWORD                       Size;                   // estimated size of symbol, can be zero
    DWORD                       Flags;                  // info about the symbols, see the SYMF defines
    DWORD                       MaxNameLength;          // maximum size of symbol name in 'Name'
    CHAR                        Name[1];                // symbol name (null terminated string)
} IMAGEHLP_SYMBOL64, *PIMAGEHLP_SYMBOL64;

typedef struct _IMAGEHLP_SYMBOL64_PACKAGE {
    IMAGEHLP_SYMBOL64 sym;
    CHAR              name[MAX_SYM_NAME + 1];
} IMAGEHLP_SYMBOL64_PACKAGE, *PIMAGEHLP_SYMBOL64_PACKAGE;

#if !defined(_IMAGEHLP_SOURCE_) && defined(_IMAGEHLP64)

 #define IMAGEHLP_SYMBOL IMAGEHLP_SYMBOL64
 #define PIMAGEHLP_SYMBOL PIMAGEHLP_SYMBOL64
 #define IMAGEHLP_SYMBOL_PACKAGE IMAGEHLP_SYMBOL64_PACKAGE
 #define PIMAGEHLP_SYMBOL_PACKAGE PIMAGEHLP_SYMBOL64_PACKAGE

#else

 typedef struct _IMAGEHLP_SYMBOL {
     DWORD                       SizeOfStruct;           // set to sizeof(IMAGEHLP_SYMBOL)
     DWORD                       Address;                // virtual address including dll base address
     DWORD                       Size;                   // estimated size of symbol, can be zero
     DWORD                       Flags;                  // info about the symbols, see the SYMF defines
     DWORD                       MaxNameLength;          // maximum size of symbol name in 'Name'
     CHAR                        Name[1];                // symbol name (null terminated string)
 } IMAGEHLP_SYMBOL, *PIMAGEHLP_SYMBOL;

 typedef struct _IMAGEHLP_SYMBOL_PACKAGE {
     IMAGEHLP_SYMBOL sym;
     CHAR            name[MAX_SYM_NAME + 1];
 } IMAGEHLP_SYMBOL_PACKAGE, *PIMAGEHLP_SYMBOL_PACKAGE;

#endif

//
// module data structure
//

typedef struct _IMAGEHLP_MODULE64 {
    DWORD                       SizeOfStruct;           // set to sizeof(IMAGEHLP_MODULE64)
    DWORD64                     BaseOfImage;            // base load address of module
    DWORD                       ImageSize;              // virtual size of the loaded module
    DWORD                       TimeDateStamp;          // date/time stamp from pe header
    DWORD                       CheckSum;               // checksum from the pe header
    DWORD                       NumSyms;                // number of symbols in the symbol table
    SYM_TYPE                    SymType;                // type of symbols loaded
    CHAR                        ModuleName[32];         // module name
    CHAR                        ImageName[256];         // image name
    CHAR                        LoadedImageName[256];   // symbol file name
} IMAGEHLP_MODULE64, *PIMAGEHLP_MODULE64;

typedef struct _IMAGEHLP_MODULE64W {
    DWORD                       SizeOfStruct;           // set to sizeof(IMAGEHLP_MODULE64)
    DWORD64                     BaseOfImage;            // base load address of module