Actually I used visual c++6.0, so It's not available _WIN32_IE>=0x0500 in ' Shellapi.h' file, that header file available structure is :
typedef struct _NOTIFYICONDATAA {
DWORD cbSize;
HWND hWnd;
UINT uID;
UINT uFlags;
UINT uCallbackMessage;
HICON hIcon;
CHAR szTip[64];
} NOTIFYICONDATAA, *PNOTIFYICONDATAA;

What should I do?