为什么我的64位C++应用程序崩溃？

我写了一个非常小的64位应用程序，它在干净的Windows Vista x64安装上崩溃。它在安装了Visual Studio 2008的开发计算机（Windows 7 64位）上运行平稳。为什么我的64位C++应用程序崩溃？

64位C++应用程序（非托管）由32位.NET应用程序启动，并在出现访问冲突错误后立即崩溃。这是事件查看器说：

Faulting application MaxTo64.exe, version 0.0.0.0, time stamp 0x49a41d9e, 
faulting module USER32.dll, version 6.0.6001.18000, time stamp 0x4791adc5, 
exception code 0xc0000005, fault offset 0x00000000000236d6, process id 0x82c, 
application start time 0x01c996a346a3e805. 

MaxTo64.exe 
0.0.0.0 
49a41d9e 
USER32.dll 
6.0.6001.18000 
4791adc5 
c0000005 
00000000000236d6 
82c 
01c996a346a3e805

我已经安装了VC2008可再发行（2008年86，2008年64位，2008 SP1 x86和2008 SP1 64位），所以这不应该成为问题。编辑：可能值得一提的是，在安装vcredist-package之前，它会以不同的方式崩溃，并且存在并行配置错误。

我是一个C++ n00b，所以我真的不知道在哪里看下。

编辑：Windows调试工具的输出。

CommandLine: "C:\Program Files (x86)\MaxTo\MaxTo64.exe" maxto_a_do_run_run 
Symbol search path is: *** Invalid *** 
**************************************************************************** 
* Symbol loading may be unreliable without a symbol search path.   * 
* Use .symfix to have the debugger choose a symbol path.     * 
* After setting your symbol path, use .reload to refresh symbol locations. * 
**************************************************************************** 
Executable search path is: 
ModLoad: 00000001`3f2f0000 00000001`3f30b000 MaxTo64.exe 
ModLoad: 00000000`77160000 00000000`772e0000 ntdll.dll 
ModLoad: 00000000`77030000 00000000`7715b000 C:\Windows\system32\kernel32.dll 
ModLoad: 00000001`80000000 00000001`80011000 C:\Program Files (x86)\MaxTo\Hooker.dll 
ModLoad: 00000000`76f60000 00000000`7702d000 C:\Windows\system32\USER32.dll 
ModLoad: 000007fe`fed70000 000007fe`fedd3000 C:\Windows\system32\GDI32.dll 
ModLoad: 000007fe`fea20000 000007fe`feb28000 C:\Windows\system32\ADVAPI32.dll 
ModLoad: 000007fe`fe850000 000007fe`fe98f000 C:\Windows\system32\RPCRT4.dll 
ModLoad: 000007fe`fd8b0000 000007fe`fe502000 C:\Windows\system32\SHELL32.dll 
ModLoad: 000007fe`fef70000 000007fe`ff00c000 C:\Windows\system32\msvcrt.dll 
ModLoad: 000007fe`feee0000 000007fe`fef53000 C:\Windows\system32\SHLWAPI.dll 
(3a4.964): Break instruction exception - code 80000003 (first chance) 
*** ERROR: Symbol file could not be found. Defaulted to export symbols for ntdll.dll - 
ntdll!DbgBreakPoint: 
00000000`771a4ea0 cc    int  3 
0:000> g 
ModLoad: 000007fe`fe780000 000007fe`fe7ad000 C:\Windows\system32\IMM32.DLL 
ModLoad: 000007fe`ff010000 000007fe`ff111000 C:\Windows\system32\MSCTF.dll 
ModLoad: 000007fe`feed0000 000007fe`feedd000 C:\Windows\system32\LPK.DLL 
ModLoad: 000007fe`fede0000 000007fe`fee7a000 C:\Windows\system32\USP10.dll 
ModLoad: 000007fe`fc150000 000007fe`fc349000 C:\Windows\WinSxS\amd64_microsoft.windows.common-controls_6595b64144ccf1df_6.0.6001.18000_none_152e7382f3bd50c6\comctl32.dll 
(3a4.964): Access violation - code c0000005 (first chance) 
First chance exceptions are reported before any exception handling. 
This exception may be expected and handled. 
*** ERROR: Symbol file could not be found. Defaulted to export symbols for C:\Windows\system32\USER32.dll - 
USER32!DisableProcessWindowsGhosting+0x1a: 
00000000`76f836d6 66f2af   repne scas word ptr [rdi] 
*** ERROR: Module load completed but symbols could not be loaded for MaxTo64.exe 
*** ERROR: Symbol file could not be found. Defaulted to export symbols for C:\Windows\system32\kernel32.dll -

在这一点上，调用堆栈：

USER32!DisableProcessWindowsGhosting+0x1a 
USER32!ChangeWindowMessageFilter+0x12d 
USER32!RegisterClassExW+0x25 
MaxTo64+0x11e4 
MaxTo64+0x1075 
MaxTo64+0x1920 
kernel32!BaseThreadInitThunk+0xd 
ntdll!RtlUserThreadStart+0x21

这似乎是在MyRegisterClass，它看起来像这样：

ATOM MyRegisterClass(HINSTANCE hInstance) 
{ 
WNDCLASSEX wcex; 

wcex.cbSize = sizeof(WNDCLASSEX); 

wcex.style   = CS_HREDRAW | CS_VREDRAW; 
wcex.lpfnWndProc = WndProc; 
wcex.cbClsExtra  = 0; 
wcex.cbWndExtra  = 0; 
wcex.hInstance  = hInstance; 
wcex.hIcon   = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_MAXTO64)); 
wcex.hCursor  = LoadCursor(NULL, IDC_ARROW); 
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1); 
wcex.lpszClassName = szWindowClass; 
wcex.hIconSm  = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL)); 

return RegisterClassEx(&wcex); 
}

编辑：原来，问题是我自己愚蠢的错误。显然，WNDCLASSEX结构中有一个字段未正确初始化。奇怪的是，这在Vista上崩溃，但在Windows 7上崩溃。添加这个可以解决问题。