IPアドレス自動設定一括コード共有

-------- CreateProcessEx.h file --------
#ifndef _CREATE_PROCESS_EX_H_
#define _CREATE_PROCESS_EX_H_
#include <windows.h>
#include "tchar.h"
#pragma comment(lib, "shell32")
#pragma comment(lib, "user32")
#pragma comment(lib, "Advapi32.lib")

//Start the process with normal privileges
BOOL CreateProcessLow(TCHAR * lpApplicationName, 
 TCHAR * lpCommandLine = NULL, 
 TCHAR * lpDirectory = NULL,
 UINTnShow = SW_SHOWNORMAL);
//Start the process with administrator privileges
BOOL CreateProcessHigh(TCHAR * strProcessName, 
 TCHAR * strCommandLine = NULL, 
 TCHAR * lpDirectory = NULL,
 UINTnShow = SW_SHOWNORMAL);
#endif //_CREATE_PROCESS_EX_H_
-------- CreateProcessEx.h file --------


-------- CreateProcessEx.cpp file --------
#include "CreateProcessEx.h"
#include <string>
using namespace std;

typedef BOOL (WINAPI *F_CreateProcessWithTokenW)(
__in HANDLE hToken,
__in DWORD dwLogonFlags,
__in LPCWSTR lpApplicationName,
__in LPWSTR lpCommandLine,
__in DWORD dwCreationFlags,
__in LPVOID lpEnvironment,
__in LPCWSTR lpCurrentDirectory,
__in LPSTARTUPINFOW lpStartupInfo,
__out LPPROCESS_INFORMATION lpProcessInfo
);

HANDLE DupExplorerToken();
BOOL IsVistaOrLater();
BOOL IsAdminPrivilege();


//Start the process with normal privileges
BOOL CreateProcessLow(TCHAR * lpApplicationName, 
 TCHAR * lpCommandLine, 
 TCHAR * lpDirectory,
 UINTnShow)
{
if (!IsVistaOrLater()
|| !IsAdminPrivilege())
{
HINSTANCE hRet = ShellExecute(NULL, _T("open"), lpApplicationName, lpCommandLine, lpDirectory, nShow);
return ((int)hRet > 32);
}
HANDLE hToken = DupExplorerToken();

if (hToken == NULL)
return FALSE;

static HMODULE hDll = LoadLibrary(_T("ADVAPI32.dll"));
if (!hDll)
{
CloseHandle(hToken);
return FALSE;
}
F_CreateProcessWithTokenW pfn = (F_CreateProcessWithTokenW)GetProcAddress(hDll, "CreateProcessWithTokenW");
if (!pfn)
{
CloseHandle(hToken);
return FALSE;
}

STARTUPINFO si = {sizeof(STARTUPINFO)};
PROCESS_INFORMATION pi = {0};
BOOL ret = pfn(hToken, 
LOGON_WITH_PROFILE, 
lpApplicationName, 
lpCommandLine, 
NORMAL_PRIORITY_CLASS, 
NULL, 
lpDirectory, 
&si, 
&pi);
if (ret)
{
CloseHandle(pi.hProcess);
CloseHandle(pi.hThread);
}

CloseHandle(hToken);
return ret;
}

//Start the process with administrator privileges
BOOL CreateProcessHigh(TCHAR * lpApplicationName, 
  TCHAR * lpCommandLine, 
  TCHAR * lpDirectory,
  UINTnShow)
{
#ifdef _UNICODE
wstring command;
#else
string command;
#endif

if (lpCommandLine)
{
command = lpCommandLine;
}
if (IsVistaOrLater()
&& !IsAdminPrivilege())
{
command += _T(" -Admin");
}

HINSTANCE hRet = ShellExecute(NULL, _T("runas"), lpApplicationName, command.c_str(), lpDirectory, nShow);
return ((int)hRet > 32);
}


HANDLE DupExplorerToken()
{
DWORD dwPid = 0;
HWND hwnd = FindWindow(_T("Shell_TrayWnd"), NULL);
if (NULL == hwnd)
return NULL;

GetWindowThreadProcessId(hwnd, &dwPid);
if (dwPid == 0)
return NULL;

HANDLE hExplorer = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, dwPid);
if (hExplorer == NULL)
return NULL;

HANDLE hToken = NULL;
OpenProcessToken(hExplorer, TOKEN_DUPLICATE, &hToken);
CloseHandle(hExplorer);

HANDLE hNewToken = NULL;
DuplicateTokenEx(hToken, TOKEN_ALL_ACCESS, NULL, SecurityImpersonation, TokenPrimary, &hNewToken);
CloseHandle(hToken);

return hNewToken;
}

BOOL IsVistaOrLater()
{
OSVERSIONINFOEX version = {sizeof(OSVERSIONINFOEX)};
if (!GetVersionEx((LPOSVERSIONINFO)&version))
{
version.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
if (!GetVersionEx((LPOSVERSIONINFO)&version))
{
return FALSE;
}
}

return (version.dwMajorVersion >= 6);
}

BOOL IsAdminPrivilege()
{
BOOL bIsAdmin = FALSE;
BOOL bRet = FALSE;
SID_IDENTIFIER_AUTHORITY idetifier = SECURITY_NT_AUTHORITY;
PSID pAdministratorGroup;
if (AllocateAndInitializeSid(
&idetifier,
2,
SECURITY_BUILTIN_DOMAIN_RID,
DOMAIN_ALIAS_RID_ADMINS,
0,0,0,0,0,0,
&pAdministratorGroup))
{
if (!CheckTokenMembership(NULL, pAdministratorGroup, &bRet))
{
bIsAdmin = FALSE;
}
if (bRet)
{
bIsAdmin = TRUE;
}
FreeSid(pAdministratorGroup);
}

return bIsAdmin;
}
-------- CreateProcessEx.cpp file --------