C++ QueryFullProcessImageNameA alternative for Windows XP?

I have found the following code in several places Google, so I have started testing. It works OK ( ish ) but the problem is "QueryFullProcessImageNameA" because according to Microsoft: https://msdn.microsoft.com/en-us/library/windows/desktop/ms684919(v=vs.85).aspx this function works on minimum Windows Vista.

The code:

int Is64(HANDLE ProcessHandle, PBOOL Is64)
    {
        int Status = 1;
        HANDLE hFile = INVALID_HANDLE_VALUE;
        LPVOID lpFile = 0;
        DWORD dwFileSize = 0, dwReaded = 0, dwSize = MAX_PATH;
        PIMAGE_NT_HEADERS NtHeaders = 0;
        char Path[MAX_PATH];

        //Minimum supported client Windows Vista[desktop apps only]
        //TODO
        if (!QueryFullProcessImageNameA(ProcessHandle, 0, Path, &dwSize) || !Is64)
        {
            Status = 2;
            goto EXIT;
        }
        hFile = CreateFileA(Path, GENERIC_READ, 0, 0, OPEN_EXISTING, 0, 0);
        if (!hFile || hFile == INVALID_HANDLE_VALUE)
        {
            Status = 3;
            goto EXIT;
        }
        dwFileSize = GetFileSize(hFile, 0);
        lpFile = VirtualAlloc(0, dwFileSize, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
        if (!lpFile)
        {
            Status = 4;
            goto EXIT;
        };
        if (!ReadFile(hFile, lpFile, dwFileSize, &dwReaded, 0))
        {
            Status = 5;
            goto EXIT;
        }
        NtHeaders = reinterpret_cast<PIMAGE_NT_HEADERS>((reinterpret_cast<DWORD_PTR>(lpFile) + PIMAGE_DOS_HEADER(lpFile)->e_lfanew));
        if (!NtHeaders ||
            NtHeaders->Signature != IMAGE_NT_SIGNATURE)
        {
            Status = 6;
            goto EXIT;
        }
        if (NtHeaders->FileHeader.Machine == IMAGE_FILE_MACHINE_AMD64 || NtHeaders->FileHeader.Machine == IMAGE_FILE_MACHINE_IA64)
        {
            *Is64 = true;
            Status = 7;
            goto EXIT;
        }
        if (NtHeaders->FileHeader.Machine == IMAGE_FILE_MACHINE_I386)
        {
            *Is64 = false;
            Status = 7;
            goto EXIT;
        }
    EXIT:
        if (hFile)
            CloseHandle(hFile);
        if (lpFile)
            VirtualFree(lpFile, dwFileSize, MEM_DECOMMIT);
        return true;
    }

So my question is, is there an "alternative" for "QueryFullProcessImageNameA" which would work on Windows XP as well, without changing this function much ?

Thank you