Moving to Windows Vista x64

#include <Windows.h>
#include <tchar.h>

#define BUF_SIZE  256 * sizeof (TCHAR)

TCHAR MyEvent[] = _T("Global\\SharedMemoryEvent");

TCHAR szName[]= _T("Global\\MyFileMappingObject");

int WINAPI _tWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR szCmdLine, int iCmdShow)
{
	//
	// Create the event to communicate between server and client
	//

	HANDLE hEvent = CreateEvent(NULL, FALSE, FALSE, MyEvent);

	//
	// Start server process
	//

	PROCESS_INFORMATION pi = { 0 };
	STARTUPINFO si = { 0 };

	if (!CreateProcess(_T("Server.exe"), NULL, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi))
		return 1;

	//
	// Wait for the server to complete the job
	//

	WaitForSingleObject(hEvent, INFINITE);

	//
	// Access shared memory object
	//

	HANDLE hMapFile = OpenFileMapping(
		FILE_MAP_ALL_ACCESS,   // read/write access
		FALSE,                 // do not inherit the name
		szName);               // name of mapping object 

	if (hMapFile == NULL) return 1;

	LPCTSTR pBuf = (LPTSTR) MapViewOfFile(
		hMapFile,              // handle to map object
		FILE_MAP_ALL_ACCESS,   // read/write permission
		0,                    
		0,                    
		BUF_SIZE);                   

	if (pBuf == NULL) return 1;

	//
	// Shows Server Output
	//

	MessageBox(NULL, pBuf, _T("Server Output"), MB_OK);

	UnmapViewOfFile(pBuf);

	CloseHandle(hMapFile);

	//
	// Tell the server that the object isn't used any longer
	//

	SetEvent(hEvent);

	return 0;
}