谁知道filemon3.6为什么release可以debug却不行

HWND InitInstance( HANDLE hInstance, int nCmdShow )
{
HWND hWndMain;

// get the window position settings from the registry
Get_Position_Settings();

// create the main window
hInst = hInstance;
hWndMain = CreateWindow( _T("FileMonClass"), _T("File Monitor"),
WS_OVERLAPPEDWINDOW,
PositionInfo.left, PositionInfo.top,
PositionInfo.width, PositionInfo.height,
NULL, NULL, hInstance, NULL );

。。。
+++++++++++++++++++++++++++++++++++
程序执行到CreateWindow就报0000000访问异常，？