What if Clinton wins and is indicted?

What’s the legal process if Clinton wins the electoral college vote, but is then indicted? I know the President is immune from lawsuits, and that impeachment is the process of bringing charges against the President for “high crimes and misdemeanors.” Does any of that apply if the President is accused of wrongdoing prior to taking office? Does it apply to a President-elect or only after inauguration? Would Kaine be president until the trial is over or can she hold office while defending against a criminal prosecution?