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diff --git a/public/sdk/inc/wownt16.h b/public/sdk/inc/wownt16.h
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+++ b/public/sdk/inc/wownt16.h
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+/*++ BUILD Version: 0001    // Increment this if a change has global effects
+
+Copyright (c) 1995-1996, Microsoft Corporation
+
+Module Name:
+
+    wownt16.h
+
+Abstract:
+
+    Procedure declarations for functions in WOW32.DLL callable by
+    3rd-party 16-bit thunking code.
+
+--*/
+
+#ifndef _WOWNT16_
+#define _WOWNT16_
+
+//
+// 16:16 -> 0:32 Pointer translation.
+//
+// GetVDMPointer32W will convert the passed in 16-bit address
+// to the equivalent 32-bit flat pointer. The upper 16 bits
+// of the address are treated according to the value passed in
+// fMode: if fMode = 1, then the hiword of vp is used as a
+// protected mode selector. Otherwise it is used as a real mode
+// segment value.
+// The lower 16 bits are treated as the offset.
+//
+// The return value is 0 if the selector is invalid.
+//
+// NOTE:  Limit checking is not performed in the retail build
+// of Windows NT.  It is performed in the checked (debug) build
+// of WOW32.DLL, which will cause 0 to be returned when the
+// limit is exceeded by the supplied offset.
+//
+
+DWORD FAR PASCAL GetVDMPointer32W(LPVOID vp, UINT fMode);
+
+
+//
+// Win32 module management.
+//
+// The following routines accept parameters that correspond directly
+// to the respective Win32 API function calls that they invoke. Refer
+// to the Win32 reference documentation for more detail.
+
+DWORD FAR PASCAL LoadLibraryEx32W(LPCSTR lpszLibFile, DWORD hFile, DWORD dwFlags);
+DWORD FAR PASCAL GetProcAddress32W(DWORD hModule, LPCSTR lpszProc);
+DWORD FAR PASCAL FreeLibrary32W(DWORD hLibModule);
+
+//
+// Generic Thunk Routine:
+//
+//   CallProc32W
+//
+// Transitions to 32 bits and calls specified routine
+//
+// This routine can pass a variable number of arguments, up to 32, to the
+// target 32-bit routine. These arguments are given to CallProc32W following
+// the 3 required parameters.
+//
+//   DWORD cParams          - Number of optional DWORD parameters (0-32)
+//
+//   LPVOID fAddressConvert - Bit Field, for 16:16 address Convertion. The
+//                            optional parameters can be automatically converted
+//                            from a 16:16 address format to flat by specifying
+//                            a 1 bit in the corresponding position in this mask.
+//                            eg (bit 1 means convert parameter 1 from 16:16
+//                              to flat address before calling routine)
+//
+//   DWORD lpProcAddress   -  32 bit native address to call (use LoadLibraryEx32W
+//                            and GetProcAddress32W to get this address).
+//
+// Returns:
+//   What ever the API returned on 32 bit side in AX:DX
+//
+// Error Returns:
+//   AX = 0, more than 32 parameters.
+//
+//
+// The function prototype must be declared by the application source code
+// in the following format:
+//
+// DWORD FAR PASCAL CallProc32W( DWORD p1, ... , DWORD lpProcAddress,
+//                                        DWORD fAddressConvert, DWORD cParams);
+//
+// where the value in cParams must match the actual number of optional
+// parameters (p1-pn) given AND the "DWORD p1, ..." must be replaced by
+// the correct number of parameters being passed.  For example, passing 3
+// parameter would simply require the removal of the ... and it insertion of
+// "DWORD p2, DWORD p3" instead.  The fAddressConvert parameter uses bit 1
+// for the last parameter (p3 in our example), with bit 2 for the next to last,
+// etc.
+//
+// Generic Thunk Routine:
+//
+//   CallProcEx32W
+//
+// Transitions to 32 bits and calls specified routine
+//
+// Similar to the CallProc32W function, the CallProcEx32W is an equivalent
+// function that is C calling convention and allows easier and more flexible
+// prototyping.  See the prototype below.  The fAddressConvert parameter uses
+// bit 1 for the 1st parameter, bit 2 for the 2nd parameter, etc.
+//
+// Both CallProc32W and CallProcEx32W accept a flag OR'd with the parameter
+// count to indicate the calling convention of the function in 32 bits.
+// For example, to call a cdecl function in 32-bits with 1 parameter, it would
+// look like this:
+//
+// dwResult = CallProcEx32W( CPEX_DEST_CDECL | 1, 0, dwfn32, p1 );
+//
+
+DWORD FAR CDECL CallProcEx32W( DWORD, DWORD, DWORD, ... );
+
+#define CPEX_DEST_STDCALL   0x00000000L
+#define CPEX_DEST_CDECL     0x80000000L
+
+#endif /* !_WOWNT16_ */