C++:UpgradeSelf

#include <windows.h>
#include <iostream>
#include <fstream>

void UpgradeService::UpgradeSelf() {

  std::string temp = root         + "\\myprogram_tmp.exe";
  remove(temp.c_str()); // ignore return code

  std::string src = upgradeFolder + "\\myprogram.exe";
  std::string dst = root          + "\\myprogram.exe";


  rename(dst.c_str(),temp.c_str());
  CopyFile(src.c_str(),dst.c_str(),false);
  static char buffer[512];
  strcpy(buffer,dst.c_str());

  /* CreateProcess API initialization */
  STARTUPINFO siStartupInfo;
  PROCESS_INFORMATION piProcessInfo;
  memset(&siStartupInfo, 0, sizeof(siStartupInfo));
  memset(&piProcessInfo, 0, sizeof(piProcessInfo));
  siStartupInfo.cb = sizeof(siStartupInfo);

  ::CreateProcess(buffer, // application name/path
    NULL, // command line (optional)
    NULL, // no process attributes (default)
    NULL, // default security attributes
    false,
    CREATE_DEFAULT_ERROR_MODE | CREATE_NEW_CONSOLE,
    NULL, // default env
    NULL, // default working dir
    &siStartupInfo,
    &piProcessInfo);


  ::TerminateProcess( GetCurrentProcess(),0);
  ::ExitProcess(0); // exit this process

  // this does not return.
}