#include <windows.h>
#include <winbase.h>

/* times in miliseconds */
#define INTERMEDIATE_DELAY 2000
#define FINAL_DELAY 15000

/* erm, duh */
#define NUMBER_OF_PROCESSES 4

/* yes yes, a dreaded global variable - speed vs size tradeoff,
who needs to initialize 68 bytes with code inside main when
we've got .data for it? ;) Besides, a smart compiler will
optimize it into .bss anyway */
STARTUPINFO startupInfo = {
sizeof(STARTUPINFO),
NULL,
NULL,
NULL,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
NULL,
NULL,
NULL,
NULL
};

/* const to let the system know it can page out without
hassle if needed, amounts to discardable memory */
const char* cmdLines[] = {
"C:\Program Files\Internet Explorer\iexplore.exe http://www.site1.com";,
"C:\Program Files\Internet Explorer\iexplore.exe http://www.site2.com";,
"C:\Program Files\Internet Explorer\iexplore.exe http://www.site3.com";,
"C:\Program Files\Internet Explorer\iexplore.exe http://www.site4.com";
};

int main()
{
unsigned int i;
HANDLE hProcesses[NUMBER_OF_PROCESSES];
PROCESS_INFORMATION procInfo;

/* add some time verification, etc here (suggest using
GetLocalTime() and checking against the desired stop time,
or GetTickCount() and compare a subtraction if it's just a
relative time instead of absolute hh:mm) */
for(;;)
{ /* infinite cycle doing the whole thing */
for (i=0;i<NUMBER_OF_PROCESSES;i++)
{ /* cycle creating the NUMBER_OF_PROCESSES processes */
if (!CreateProcess(NULL,
cmdLines[i],
NULL,
NULL,
FALSE,
0,
NULL,
NULL,
&startupInfo,
&procInfo))
{ /* couldn't run */
/* add code to print an error out based on GetLastError()
here, I'm lazy ;) - suggest using FormatMessage() */
return 2;
}
CloseHandle(procInfo.hThread); /* don't need this */
hProcesses[i]=procInfo.hProcess;
Sleep(INTERMEDIATE_DELAY);
}

/* final delay */
Sleep(FINAL_DELAY - INTERMEDIATE_DELAY);

/* _kill_ all processes */
for (i=0;i<NUMBER_OF_PROCESSES;i++)
{
TerminateProcess(hProcesses[i],0); /* die, you #$%@! */
CloseHandle(hProcesses[i]);
}
}

/* won't ever reach this as it is, it's here for when we actually
implement a stopping condition for the big for */
return 0;
}

const char* cmdLines[] = {
"C:\Program Files\Internet Explorer\iexplore.exe http://www.site1.com";,
"C:\Program Files\Internet Explorer\iexplore.exe http://www.site2.com";,
"C:\Program Files\Internet Explorer\iexplore.exe http://www.site3.com";,
"C:\Program Files\Internet Explorer\iexplore.exe http://www.site4.com";
};

const char* cmdLines[] = {
"C:\Program Files\Internet Explorer\iexplore.exe http://www.site1.com";,
"C:\Program Files\Internet Explorer\iexplore.exe http://www.site2.com";,
"C:\Program Files\Internet Explorer\iexplore.exe http://www.site3.com";,
"C:\Program Files\Internet Explorer\iexplore.exe http://www.site4.com";
};

const char* cmdLines[] = {
"C:\\Program Files\\Internet Explorer\\iexplore.exe http://www.site1.com",
"C:\\Program Files\\Internet Explorer\\iexplore.exe http://www.site2.com",
"C:\\Program Files\\Internet Explorer\\iexplore.exe http://www.site3.com",
"C:\\Program Files\\Internet Explorer\\iexplore.exe http://www.site4.com"
};

  printf("\n\n  This program creates an infinite loop that repeatedly does ");
  printf("the following:\n\n");
  printf("    Invoke Internet Explorer four times, then wait a little while\n");
  printf("    and close the four Internet Explorer windows.\n\n\n\n");
  printf("  I am going to give you the opportunity to Press \"Enter\" to do\n");
  printf("  it, or Ctrl-C to forget the whole thing. \n\n");
  printf("  If you decide to proceed, you can stop the program at any time\n");
  printf("  by typing Ctrl-C (in this window). If there are any left-over\n");
  printf("  Internet Explorer windows you can then manually close them.\n\n");
  printf("  Press the \"Enter\" key to start the program, press Ctrl-C to quit: ");

  getchar();
  printf("\n\n");

{ /* couldn't run */
  /* add code to print an error out based on GetLastError()
  here, I'm lazy ;) - suggest using FormatMessage() */
  printf("Couldn't run cmdLines[%d]: <%s>\n", i, cmdLines[i]);
  return 2;

  char* cmdLines[] = {
      "C:\\Program Files\\Internet Explorer\\iexplore.exe about:Instance1",
      "C:\\Program Files\\Internet Explorer\\iexplore.exe about:Instance2",
      "C:\\Program Files\\Internet Explorer\\iexplore.exe about:Instance3",
      "C:\\Program Files\\Internet Explorer\\iexplore.exe about:Instance4"
  };