ChatGPT——请生成rundll32.exe 可以运行的打开计算器程序的dll C++代码，并给出编译代码和运行方式

#include <windows.h>

BOOL APIENTRY DllMain(HMODULE hModule,
	DWORD  ul_reason_for_call,
	LPVOID lpReserved
)
{
	switch (ul_reason_for_call)
	{
	case DLL_PROCESS_ATTACH:
	case DLL_THREAD_ATTACH:
	case DLL_THREAD_DETACH:
	case DLL_PROCESS_DETACH:
		break;
	}
	return TRUE;
}

// 此函数被 rundll32.exe 调用
extern "C" __declspec(dllexport) void CALLBACK OpenCalculator(HWND hwnd, HINSTANCE hinst, LPSTR lpszCmdLine, int nCmdShow)
{
	ShellExecute(NULL, "open", "calc.exe", NULL, NULL, SW_SHOW);
}