diff --git a/src/UserInterface/CheckLatestFiles.cpp b/src/UserInterface/CheckLatestFiles.cpp
deleted file mode 100644
index 04a62b5..0000000
--- a/src/UserInterface/CheckLatestFiles.cpp
+++ /dev/null
@@ -1,64 +0,0 @@
-#include "StdAfx.h"
-#if defined(CHECK_LATEST_DATA_FILES)
-#include "CheckLatestFiles.h"
-#include "resource.h"
-
-static struct SCHECKFILELIST
-{
-	LPCSTR		szFileName;
-	DWORD		dwCRC32;
-	ULONGLONG	ullSize;
-} s_astCRC32FileList[] = {
-#include "CRC32_inc.h"
-	{ NULL,		0 }
-};
-
-static bool gs_bQuit = false;
-
-bool CheckLatestFiles_PollEvent( void )
-{
-	return gs_bQuit;
-}
-
-// 데이타 파일 CRC32 값 검사하기
-bool CheckFileCRC32( LPCSTR szFileName, DWORD dwCRC32 )
-{
-	char szMessage[256];
-
-	if (_access( szFileName, 4 ) != 0) {
-		_snprintf(szMessage, sizeof(szMessage)/sizeof(szMessage[0])-1, ApplicationStringTable_GetStringz(IDS_ERR_CANNOT_READ_FILE, "ERR_CANNOT_READ_FILE"), szFileName);
-		ApplicationSetErrorString(szMessage);
-		return false;
-	}
-	DWORD dwLocalCRC32 = GetFileCRC32(szFileName);
-
-	if (dwCRC32 != dwLocalCRC32) {
-		_snprintf(szMessage, sizeof(szMessage)/sizeof(szMessage[0])-1, ApplicationStringTable_GetStringz(IDS_ERR_NOT_LATEST_FILE, "ERR_NOT_LATEST_FILE"), szFileName);
-		ApplicationSetErrorString(szMessage);
-		return false;
-	}
-
-	return true;
-}
-
-UINT CALLBACK CheckLatestFilesEntry(void * pThis)
-{
-	::Sleep( 500 );
-	for( int i=0; s_astCRC32FileList[i].szFileName != NULL; i++ ) {
-		if (false == CheckFileCRC32(s_astCRC32FileList[i].szFileName, s_astCRC32FileList[i].dwCRC32)) {
-			gs_bQuit = true;
-			break;
-		}
-	}
-	return 0;
-}
-
-bool CheckLatestFiles( void )
-{
-	unsigned int uThreadID = 0;
-
-	HANDLE hThread = (HANDLE) _beginthreadex(NULL, 0, CheckLatestFilesEntry, NULL, 0, &uThreadID);
-	::SetThreadPriority(hThread, THREAD_PRIORITY_LOWEST);
-	return true;
-}
-#endif
diff --git a/src/UserInterface/CheckLatestFiles.h b/src/UserInterface/CheckLatestFiles.h
deleted file mode 100644
index 9726cbd..0000000
--- a/src/UserInterface/CheckLatestFiles.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#pragma once
-
-#if defined(CHECK_LATEST_DATA_FILES)
-bool CheckLatestFiles( void );
-bool CheckLatestFiles_PollEvent( void );
-#endif
diff --git a/src/UserInterface/Locale_inc_EU.h b/src/UserInterface/Locale_inc_EU.h
index a6a5560..00482fe 100644
--- a/src/UserInterface/Locale_inc_EU.h
+++ b/src/UserInterface/Locale_inc_EU.h
@@ -1,5 +1,2 @@
 #define LOCALE_SERVICE_EUROPE				// 유럽
-
 #define LSS_SECURITY_KEY		"1234abcd5678efgh"
-
-#define CHECK_LATEST_DATA_FILES
diff --git a/src/UserInterface/Locale_inc_EU2.h b/src/UserInterface/Locale_inc_EU2.h
index 2604415..a0e6d25 100644
--- a/src/UserInterface/Locale_inc_EU2.h
+++ b/src/UserInterface/Locale_inc_EU2.h
@@ -1,13 +1,7 @@
 #define LOCALE_SERVICE_EUROPE				// 유럽
-
-//#define CHECK_LATEST_DATA_FILES
-
 #define LSS_SECURITY_KEY					"1234abcd5678efgh"
-
 #define ENABLE_COSTUME_SYSTEM
-
 #define ENABLE_ENERGY_SYSTEM
-
 #define ENABLE_DRAGON_SOUL_SYSTEM
 #define ENABLE_NEW_EQUIPMENT_SYSTEM	
 
diff --git a/src/UserInterface/Locale_inc_JP.h b/src/UserInterface/Locale_inc_JP.h
index bca21fe..ee88a7a 100644
--- a/src/UserInterface/Locale_inc_JP.h
+++ b/src/UserInterface/Locale_inc_JP.h
@@ -1,10 +1,6 @@
 #define LOCALE_SERVICE_WE_JAPAN				// World Edition(유럽 버젼) 버젼의 일본
 #define LOCALE_SERVICE_EUROPE				// 유럽
-
 #define LSS_SECURITY_KEY		"1234abcd5678efgh"
-
-#define CHECK_LATEST_DATA_FILES
-
 #define ENABLE_COSTUME_SYSTEM
 #define ENABLE_ENERGY_SYSTEM
 #define USE_OPENID
diff --git a/src/UserInterface/PythonApplication.cpp b/src/UserInterface/PythonApplication.cpp
index 0db235b..dd694f4 100644
--- a/src/UserInterface/PythonApplication.cpp
+++ b/src/UserInterface/PythonApplication.cpp
@@ -10,7 +10,6 @@
 #include "PythonCharacterManager.h"
 
 #include "ProcessScanner.h"
-#include "CheckLatestFiles.h"
 
 extern void GrannyCreateSharedDeformBuffer();
 extern void GrannyDestroySharedDeformBuffer();
@@ -259,11 +258,6 @@ void CPythonApplication::SkipRenderBuffering(DWORD dwSleepMSec)
 
 bool CPythonApplication::Process()
 {
-#if defined(CHECK_LATEST_DATA_FILES)
-	if (CheckLatestFiles_PollEvent())
-		return false;
-#endif
-
 	ELTimer_SetFrameMSec();
 
 	// 	m_Profiler.Clear();
diff --git a/src/UserInterface/UserInterface.cpp b/src/UserInterface/UserInterface.cpp
index ab8a2de..dcf5bb9 100644
--- a/src/UserInterface/UserInterface.cpp
+++ b/src/UserInterface/UserInterface.cpp
@@ -13,8 +13,6 @@
 #include "eterLib/Util.h"
 #include "eterBase/CPostIt.h"
 
-#include "CheckLatestFiles.h"
-
 extern "C" {  
 extern int _fltused;  
 volatile int _AVOID_FLOATING_POINT_LIBRARY_BUG = _fltused;  
@@ -492,11 +490,6 @@ int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLi
 	LocaleService_LoadConfig("config/locale.cfg");
 	SetDefaultCodePage(LocaleService_GetCodePage());	
 
-#if defined(CHECK_LATEST_DATA_FILES)
-	if (!CheckLatestFiles())
-		return 0;
-#endif
-
 	bool bQuit = false;
 	bool bAuthKeyChecked = false;	//OpenID 버전에서 인증키가 들어왔는지 알기 위한 인자.
 	int nArgc = 0;