diff --git a/trunk/SkipFirstLaunch/CfgChanger.cpp b/trunk/SkipFirstLaunch/CfgChanger.cpp
index a2b3efe..e83df0a 100644
--- a/trunk/SkipFirstLaunch/CfgChanger.cpp
+++ b/trunk/SkipFirstLaunch/CfgChanger.cpp
@@ -14,6 +14,7 @@
  *---------------------------------------------------------------------------*/
 
 #include "CfgChanger.h"
+#include <nn/cfg.h>
 #include <nn/cfg/CTR/cfg_ApiSys.h>
 #include <nn/cfg/CTR/detail/cfg_Keys.h>
 #include <nn/cfg/CTR/detail/cfg_DataStructures.h>
@@ -21,6 +22,7 @@
 #include <nn/cfg/CTR/cfg_ApiNor.h>
 #include <nn/ac/CTR/private/ac_InternalApi.h>
 #include <nn/ac/CTR/private/ac_NetworkSetting.h>
+#include "VersionDetect.h"
 
 namespace
 {
@@ -78,6 +80,9 @@ NN_PADDING2;
 
 // 時間
 nn::fnd::DateTime m_DateTime;
+
+// バージョン情報
+VerDef m_Version;
 };
 
 SaveData s_SaveData;
@@ -246,6 +251,11 @@ nn::Result CfgChanger::GetCfgData()
     NN_UTIL_RETURN_IF_FAILED(result);
     nn::cfg::nor::CTR::Finalize();
 
+    // バージョン情報
+    NN_UTIL_RETURN_IF_FAILED(
+            GetSystemVersion(&s_SaveData.m_Version, nn::cfg::CTR::GetRegion())
+    );
+
     return nn::ResultSuccess();
 }
 
@@ -289,6 +299,15 @@ nn::Result CfgChanger::RestoreCfgDataFromBackup()
 
     nn::cfg::CTR::system::Initialize();
 
+    // バージョン確認
+    VerDef currentVersion;
+    NN_UTIL_RETURN_IF_FAILED(
+            GetSystemVersion(&currentVersion, nn::cfg::CTR::GetRegion())
+    );
+    NN_UTIL_RETURN_IF_FAILED(
+            CheckSystemVersion(&currentVersion, &s_SaveData.m_Version)
+    );
+
     nn::fnd::DateTime now = nn::fnd::DateTime::GetNow();
     s64 usertimeOffset;
     result = nn::cfg::CTR::system::GetConfig(&usertimeOffset, sizeof(usertimeOffset), GET_CFG_KEY(NN_CFG_RTC, NN_CFG_RTC_USERTIME_OFFSET));
@@ -379,3 +398,18 @@ nn::Result CfgChanger::RestoreCfgDataFromBackup()
 
     return nn::ResultSuccess();
 }
+
+nn::Result CfgChanger::CheckSystemVersion(VerDef* currentVersion, VerDef* savedVersion)
+{
+    if(currentVersion->cup.majorVersion == savedVersion->cup.majorVersion &&
+            currentVersion->cup.minorVersion == savedVersion->cup.minorVersion &&
+            currentVersion->cup.microVersion == savedVersion->cup.microVersion &&
+            currentVersion->nup.majorVersion == savedVersion->nup.majorVersion)
+    {
+        return nn::ResultSuccess();
+    }
+    else
+    {
+        nn::MakePermanentResult(nn::Result::SUMMARY_INVALID_STATE, nn::Result::MODULE_APPLICATION, nn::Result::DESCRIPTION_OUT_OF_RANGE);
+    }
+}
diff --git a/trunk/SkipFirstLaunch/CfgChanger.h b/trunk/SkipFirstLaunch/CfgChanger.h
index a0889a0..41275fe 100644
--- a/trunk/SkipFirstLaunch/CfgChanger.h
+++ b/trunk/SkipFirstLaunch/CfgChanger.h
@@ -17,6 +17,7 @@
 #define CFGCHANGER_H_
 
 #include <nn.h>
+#include "VersionDetect.h"
 
 class CfgChanger
 {
@@ -44,6 +45,9 @@ private:
     // CFGのデータをバックアップメモリから書き込みます
     nn::Result RestoreCfgDataFromBackup();
 
+    // 本体のバージョンが一致しているか確認します
+    nn::Result CheckSystemVersion(VerDef* currentVersion, VerDef* savedVersion);
+
     static const size_t FILE_NUM = 1;
     static const size_t DIR_NUM = 1;
     static const bool DUPLICATE = true;
diff --git a/trunk/SkipFirstLaunch/OMakefile b/trunk/SkipFirstLaunch/OMakefile
index 6c5b3b8..fa177c2 100644
--- a/trunk/SkipFirstLaunch/OMakefile
+++ b/trunk/SkipFirstLaunch/OMakefile
@@ -32,6 +32,7 @@ SOURCES[]           =
                         HeapManager.cpp
                         StateManager.cpp
                         CfgChanger.cpp
+                        VersionDetect.cpp
                         syokaikidou.cpp
                         sysSharedExtSaveData.cpp
                         sysUserInfoAccessor.cpp
diff --git a/trunk/SkipFirstLaunch/VersionDetect.cpp b/trunk/SkipFirstLaunch/VersionDetect.cpp
new file mode 100644
index 0000000..bf6e389
--- /dev/null
+++ b/trunk/SkipFirstLaunch/VersionDetect.cpp
@@ -0,0 +1,143 @@
+/*---------------------------------------------------------------------------*
+  Project:  Horizon
+  File:     VersionDetect.cpp
+
+  Copyright 2009 Nintendo.  All rights reserved.
+
+  These coded instructions, statements, and computer programs contain
+  proprietary information of Nintendo of America Inc. and/or Nintendo
+  Company Ltd., and are protected by Federal copyright law.  They may
+  not be disclosed to third parties or copied or duplicated in any form,
+  in whole or in part, without the prior written consent of Nintendo.
+
+  $Rev$
+ *---------------------------------------------------------------------------*/
+
+#include <nn.h>
+#include <nn/fs.h>
+#include <nn/fs/CTR/MPCore/fs_FileSystemBasePrivate.h>
+
+#include "VersionDetect.h"
+#include "HeapManager.h"
+
+namespace
+{
+const nn::ProgramId     cCupVerId[] =
+{
+    nn::pl::CTR::SHAREDDATA_TITLEID_CUP_VERSION_JP,
+    nn::pl::CTR::SHAREDDATA_TITLEID_CUP_VERSION_US,
+    nn::pl::CTR::SHAREDDATA_TITLEID_CUP_VERSION_EU,
+    nn::pl::CTR::SHAREDDATA_TITLEID_CUP_VERSION_EU,
+    nn::pl::CTR::SHAREDDATA_TITLEID_CUP_VERSION_CN,
+    nn::pl::CTR::SHAREDDATA_TITLEID_CUP_VERSION_KR,
+    nn::pl::CTR::SHAREDDATA_TITLEID_CUP_VERSION_TW,
+};
+
+const nn::ProgramId     cNupVerId[] =
+{
+    nn::pl::CTR::SHAREDDATA_TITLEID_NUP_VERSION_JP,
+    nn::pl::CTR::SHAREDDATA_TITLEID_NUP_VERSION_US,
+    nn::pl::CTR::SHAREDDATA_TITLEID_NUP_VERSION_EU,
+    nn::pl::CTR::SHAREDDATA_TITLEID_NUP_VERSION_EU,
+    nn::pl::CTR::SHAREDDATA_TITLEID_NUP_VERSION_CN,
+    nn::pl::CTR::SHAREDDATA_TITLEID_NUP_VERSION_KR,
+    nn::pl::CTR::SHAREDDATA_TITLEID_NUP_VERSION_TW,
+};
+
+}
+
+nn::Result GetCupVersion(nn::pl::CTR::CardUpdateVersion* cup, nn::cfg::CTR::CfgRegionCode region)
+{
+    const size_t BUF_SIZE = 1024;
+    u8 buf[BUF_SIZE];
+    // CUPバージョン
+    NN_UTIL_RETURN_IF_FAILED(
+            nn::fs::MountContent("cver:", nn::fs::MEDIA_TYPE_NAND, cCupVerId[region], 0, 1, 1, buf, BUF_SIZE)
+    );
+
+    nn::fs::FileInputStream fis;
+
+    NN_UTIL_RETURN_IF_FAILED(
+            fis.TryInitialize(L"cver:/version.bin")
+    );
+    s64 fileSize = fis.GetSize();
+    NN_LOG("version.bin size = %lld\n", fileSize);
+    s32 ret;
+    void* addr = NULL;
+    common::HeapManager heap(fileSize);
+    addr = heap.GetAddr();
+    if(!addr)
+    {
+        return nn::MakePermanentResult(nn::Result::SUMMARY_OUT_OF_RESOURCE, nn::Result::MODULE_APPLICATION,
+                nn::Result::DESCRIPTION_OUT_OF_MEMORY);
+    }
+
+    NN_UTIL_RETURN_IF_FAILED(
+            fis.TryRead(&ret, addr, fileSize)
+    );
+
+    nn::pl::CTR::CardUpdateVersion* ver_buf = reinterpret_cast<nn::pl::CTR::CardUpdateVersion*>(addr);
+    std::memcpy(cup, ver_buf, sizeof(nn::pl::CTR::CardUpdateVersion));
+    fis.Finalize();
+
+    NN_UTIL_RETURN_IF_FAILED(
+            nn::fs::Unmount("cver:")
+    );
+    return nn::ResultSuccess();
+}
+
+nn::Result GetNupVersion(nn::pl::CTR::NetworkUpdateVersion* nup, nn::cfg::CTR::CfgRegionCode region)
+{
+    const size_t BUF_SIZE = 1024;
+    u8 buf[BUF_SIZE];
+
+    // NUPバージョン
+    NN_UTIL_RETURN_IF_FAILED(
+            nn::fs::MountContent("nver:", nn::fs::MEDIA_TYPE_NAND, cNupVerId[region], 0, 1, 1, buf, BUF_SIZE)
+    );
+
+    nn::fs::FileInputStream fis;
+    NN_UTIL_RETURN_IF_FAILED(
+            fis.TryInitialize(L"nver:/version.bin")
+    );
+
+    s64 fileSize = fis.GetSize();
+    NN_LOG("version.bin size = %lld\n", fileSize);
+    s32 ret;
+    void* addr = NULL;
+    common::HeapManager heap(fileSize);
+    addr = heap.GetAddr();
+
+    if(!addr)
+    {
+        return nn::MakePermanentResult(nn::Result::SUMMARY_OUT_OF_RESOURCE, nn::Result::MODULE_APPLICATION,
+                nn::Result::DESCRIPTION_OUT_OF_MEMORY);
+    }
+
+    NN_UTIL_RETURN_IF_FAILED(
+            fis.TryRead(&ret, addr, fileSize)
+    );
+
+    nn::pl::CTR::NetworkUpdateVersion* ver_buf = reinterpret_cast<nn::pl::CTR::NetworkUpdateVersion*>(addr);
+    std::memcpy(nup, ver_buf, sizeof(nn::pl::CTR::NetworkUpdateVersion));
+    fis.Finalize();
+
+    NN_UTIL_RETURN_IF_FAILED(
+            nn::fs::Unmount("nver:")
+    );
+    return nn::ResultSuccess();
+}
+
+nn::Result GetSystemVersion(VerDef* mVerData, nn::cfg::CTR::CfgRegionCode region)
+{
+    NN_UTIL_RETURN_IF_FAILED(
+            GetCupVersion(&mVerData->cup, region)
+    );
+
+    NN_UTIL_RETURN_IF_FAILED(
+            GetNupVersion(&mVerData->nup, region)
+    );
+
+
+    return nn::ResultSuccess();
+}
diff --git a/trunk/SkipFirstLaunch/VersionDetect.h b/trunk/SkipFirstLaunch/VersionDetect.h
new file mode 100644
index 0000000..5dfa588
--- /dev/null
+++ b/trunk/SkipFirstLaunch/VersionDetect.h
@@ -0,0 +1,36 @@
+/*---------------------------------------------------------------------------*
+  Project:  Horizon
+  File:     VersionDetect.h
+
+  Copyright 2009 Nintendo.  All rights reserved.
+
+  These coded instructions, statements, and computer programs contain
+  proprietary information of Nintendo of America Inc. and/or Nintendo
+  Company Ltd., and are protected by Federal copyright law.  They may
+  not be disclosed to third parties or copied or duplicated in any form,
+  in whole or in part, without the prior written consent of Nintendo.
+
+  $Rev$
+ *---------------------------------------------------------------------------*/
+
+#ifndef VERSIONDETECT_H_
+#define VERSIONDETECT_H_
+
+#include <nn.h>
+#include <nn/cfg/CTR/cfg_RegionCode.h>
+#include <nn/pl/CTR/pl_SharedDataTitleId.h>
+#include <nn/pl/CTR/pl_Version.h>
+
+
+struct VerDef
+{
+    nn::pl::CTR::CardUpdateVersion      cup;
+    nn::pl::CTR::NetworkUpdateVersion   nup;
+};
+
+// リージョンコードに基づいてバージョン情報を取得する
+nn::Result GetSystemVersion(VerDef* mVerData, nn::cfg::CTR::CfgRegionCode region);
+
+
+
+#endif /* VERSIONDETECT_H_ */