OfficeAssistant_Win10/startcalc/main.cpp

#include <Windows.h>
#include <stdlib.h>
int WINAPI WinMain(
	HINSTANCE hInstance,
	HINSTANCE hPrevInstance,
	PSTR nCmdLine,
	int iCmdShow) {
	WinExec("calc.exe", SW_SHOW);
	return 0;
}