STARTUPINFO si;
 PROCESS_INFORMATION pi;

 ZeroMemory(&si, sizeof(si));
 si.cb = sizeof(si);

 // Start the process
 if(!CreateProcess("c:\\windows\\notepad.exe", NULL/*Command line params go here*/, NULL, NULL, FALSE, 0, NULL, NULL/*Working full dir path for new process goes here*/, &si, &pi)) 
 {
  // Error
 }
 // Wait until process exits
 // Remove this line if you don't want to wait 'till the process is finished
 WaitForSingleObject(pi.hProcess, INFINITE);

 // Close process and thread handles
 CloseHandle(pi.hProcess);
 CloseHandle(pi.hThread);

 MessageBox(NULL, "outta here", "test", MB_OK); // continue...