diff --git a/Source/astcenc.h b/Source/astcenc.h
index 4d8836d88c6a2246665de138fe829e68310dc345..f9ce19fb569db98855d2349b992d233bfa02f1bb 100644
--- a/Source/astcenc.h
+++ b/Source/astcenc.h
@@ -175,27 +175,10 @@
 	#define ASTCENC_NEON 0
 #endif
 
-#ifdef ASTC_CUSTOMIZED_ENABLE
-#if defined(_WIN32) && !defined(__CYGWIN__)
-#define NOMINMAX
-#include <windows.h>
-#include <io.h>
-#else
-#include <dlfcn.h>
-#endif
-
-#include <unistd.h>
-#include <fstream>
-#include <sstream>
-#include <cstdio>
-#endif
-
 enum QualityProfile {
 	HIGH_QUALITY_PROFILE = 0, // default profile
 	HIGH_SPEED_PROFILE,
-#ifdef ASTC_CUSTOMIZED_ENABLE
 	CUSTOMIZED_PROFILE
-#endif
 };
 
 static const int HIGH_SPEED_PROFILE_BLOCK_MODE = 67; // keep openSource type, example
@@ -913,160 +896,4 @@ ASTCENC_PUBLIC astcenc_error astcenc_get_block_info(
 ASTCENC_PUBLIC const char* astcenc_get_error_string(
 	astcenc_error status);
 
-#ifdef ASTC_CUSTOMIZED_ENABLE
-#if defined(_WIN32) && !defined(__CYGWIN__)
-const LPCSTR g_astcCustomizedSo = "libastcCustomizedEncode.dll";
-#elif defined(BUILD_HMOS_SDK)
-const std::string g_astcCustomizedSo = "libastcCustomizedEncode.so";
-#else
-const std::string g_astcCustomizedSo = "/system/lib64/module/hms/graphic/libastcCustomizedEncode.z.so";
-#endif
-using IsCustomizedBlockMode = bool (*)(const int);
-using CustomizedMaxPartitions = int (*)();
-using CustomizedBlockMode = int (*)();
-
-class AstcCustomizedSoManager
-{
-public:
-	AstcCustomizedSoManager()
-	{
-		astcCustomizedSoOpened_ = false;
-		astcCustomizedSoHandle_ = nullptr;
-		isCustomizedBlockModeFunc_ = nullptr;
-		customizedMaxPartitionsFunc_ = nullptr;
-		customizedBlockModeFunc_ = nullptr;
-	}
-	~AstcCustomizedSoManager()
-	{
-		if (!astcCustomizedSoOpened_ || astcCustomizedSoHandle_ == nullptr)
-		{
-			printf("astcenc customized so is not be opened when dlclose!\n");
-			return;
-		}
-#if defined(_WIN32) && !defined(__CYGWIN__)
-		if (!FreeLibrary(astcCustomizedSoHandle_))
-		{
-			printf("astc dll FreeLibrary failed: %s\n", g_astcCustomizedSo);
-		}
-#else
-		if (dlclose(astcCustomizedSoHandle_) != 0)
-		{
-			printf("astcenc so dlclose failed: %s\n", g_astcCustomizedSo.c_str());
-		}
-#endif
-	}
-	IsCustomizedBlockMode isCustomizedBlockModeFunc_;
-	CustomizedMaxPartitions customizedMaxPartitionsFunc_;
-	CustomizedBlockMode customizedBlockModeFunc_;
-	bool LoadSutCustomizedSo()
-	{
-		if (!astcCustomizedSoOpened_)
-		{
-#if defined(_WIN32) && !defined(__CYGWIN__)
-			if ((_access(g_astcCustomizedSo, 0) == -1))
-			{
-				printf("astc customized dll(%s) is not found!\n", g_astcCustomizedSo);
-				return false;
-			}
-			astcCustomizedSoHandle_ = LoadLibrary(g_astcCustomizedSo);
-			if (astcCustomizedSoHandle_ == nullptr)
-			{
-				printf("astc libAstcCustomizedEnc LoadLibrary failed!\n");
-				return false;
-			}
-			isCustomizedBlockModeFunc_ =
-				reinterpret_cast<IsCustomizedBlockMode>(GetProcAddress(astcCustomizedSoHandle_,
-				"IsCustomizedBlockMode"));
-			if (isCustomizedBlockModeFunc_ == nullptr)
-			{
-				printf("astc isCustomizedBlockModeFunc_ GetProcAddress failed!\n");
-				if (!FreeLibrary(astcCustomizedSoHandle_))
-				{
-					printf("astc isCustomizedBlockModeFunc_ FreeLibrary failed!\n");
-				}
-				return false;
-			}
-			customizedMaxPartitionsFunc_ =
-				reinterpret_cast<CustomizedMaxPartitions>(GetProcAddress(astcCustomizedSoHandle_,
-				"CustomizedMaxPartitions"));
-			if (customizedMaxPartitionsFunc_ == nullptr)
-			{
-				printf("astc customizedMaxPartitionsFunc_ GetProcAddress failed!\n");
-				if (!FreeLibrary(astcCustomizedSoHandle_))
-				{
-					printf("astc customizedMaxPartitionsFunc_ FreeLibrary failed!\n");
-				}
-				return false;
-			}
-			customizedBlockModeFunc_ =
-				reinterpret_cast<CustomizedBlockMode>(GetProcAddress(astcCustomizedSoHandle_,
-				"CustomizedBlockMode"));
-			if (customizedBlockModeFunc_ == nullptr)
-			{
-				printf("astc customizedBlockModeFunc_ GetProcAddress failed!\n");
-				if (!FreeLibrary(astcCustomizedSoHandle_))
-				{
-					printf("astc customizedBlockModeFunc_ FreeLibrary failed!\n");
-				}
-				return false;
-			}
-			printf("astcenc customized dll load success: %s!\n", g_astcCustomizedSo);
-#else
-			if (access(g_astcCustomizedSo.c_str(), F_OK) == -1)
-			{
-				printf("astc customized so(%s) is not found!\n", g_astcCustomizedSo.c_str());
-				return false;
-			}
-			astcCustomizedSoHandle_ = dlopen(g_astcCustomizedSo.c_str(), 1);
-			if (astcCustomizedSoHandle_ == nullptr)
-			{
-				printf("astc libAstcCustomizedEnc dlopen failed!\n");
-				return false;
-			}
-			isCustomizedBlockModeFunc_ =
-				reinterpret_cast<IsCustomizedBlockMode>(dlsym(astcCustomizedSoHandle_,
-				"IsCustomizedBlockMode"));
-			if (isCustomizedBlockModeFunc_ == nullptr)
-			{
-				printf("astc isCustomizedBlockModeFunc_ dlsym failed!\n");
-				dlclose(astcCustomizedSoHandle_);
-				astcCustomizedSoHandle_ = nullptr;
-				return false;
-			}
-			customizedMaxPartitionsFunc_ =
-				reinterpret_cast<CustomizedMaxPartitions>(dlsym(astcCustomizedSoHandle_,
-				"CustomizedMaxPartitions"));
-			if (customizedMaxPartitionsFunc_ == nullptr)
-			{
-				printf("astc customizedMaxPartitionsFunc_ dlsym failed!\n");
-				dlclose(astcCustomizedSoHandle_);
-				astcCustomizedSoHandle_ = nullptr;
-				return false;
-			}
-			customizedBlockModeFunc_ =
-				reinterpret_cast<CustomizedBlockMode>(dlsym(astcCustomizedSoHandle_,
-				"CustomizedBlockMode"));
-			if (customizedBlockModeFunc_ == nullptr)
-			{
-				printf("astc customizedBlockModeFunc_ dlsym failed!\n");
-				dlclose(astcCustomizedSoHandle_);
-				astcCustomizedSoHandle_ = nullptr;
-				return false;
-			}
-			printf("astcenc customized so dlopen success: %s\n", g_astcCustomizedSo.c_str());
-#endif
-			astcCustomizedSoOpened_ = true;
-		}
-		return true;
-	}
-private:
-	bool astcCustomizedSoOpened_;
-#if defined(_WIN32) && !defined(__CYGWIN__)
-	HINSTANCE astcCustomizedSoHandle_;
-#else
-	void *astcCustomizedSoHandle_;
-#endif
-};
-extern AstcCustomizedSoManager g_astcCustomizedSoManager;
-#endif
 #endif
diff --git a/Source/astcenc_entry.cpp b/Source/astcenc_entry.cpp
index 5a1ad96a212224ce5f0ccba105ef38740cfc3aa3..81f8f6bf342c30a16251dc58fbe2b93f8e53afc5 100644
--- a/Source/astcenc_entry.cpp
+++ b/Source/astcenc_entry.cpp
@@ -681,6 +681,13 @@ astcenc_error astcenc_context_alloc(
 	}
 #endif
 
+#ifndef ASTC_CUSTOMIZED_ENABLE
+	if (config.privateProfile == CUSTOMIZED_PROFILE)
+	{
+		return ASTCENC_ERR_BAD_PARAM;
+	}
+#endif
+
 	astcenc_context* ctxo = new astcenc_context;
 	astcenc_contexti* ctx = &ctxo->context;
 	ctx->thread_count = thread_count;
diff --git a/Source/astcenc_internal.h b/Source/astcenc_internal.h
index 03a0b72d1e9491c34e9f70c6eda3a8686ada9ff3..bad12479acc07ab8546ce2693cce4e7780c34d9e 100644
--- a/Source/astcenc_internal.h
+++ b/Source/astcenc_internal.h
@@ -31,6 +31,18 @@
 #include <cstdlib>
 #include <limits>
 
+#ifdef ASTC_CUSTOMIZED_ENABLE
+#include <unistd.h>
+#include <string>
+#if defined(_WIN32) && !defined(__CYGWIN__)
+#define NOMINMAX
+#include <windows.h>
+#include <io.h>
+#else
+#include <dlfcn.h>
+#endif
+#endif
+
 #include "astcenc.h"
 #include "astcenc_mathlib.h"
 #include "astcenc_vecmathlib.h"
@@ -2238,4 +2250,165 @@ void aligned_free(T* ptr)
 #endif
 }
 
+#ifdef ASTC_CUSTOMIZED_ENABLE
+#ifdef BUILD_HMOS_SDK
+#if defined(_WIN32) && !defined(__CYGWIN__)
+const LPCSTR g_astcCustomizedSo = "../../hms/toolchains/lib/libastcCustomizedEncode.dll";
+#elif defined(__APPLE__)
+const std::string g_astcCustomizedSo = "../../hms/toolchains/lib/libastcCustomizedEncode.dylib";
+#else
+const std::string g_astcCustomizedSo = "../../hms/toolchains/lib/libastcCustomizedEncode.so";
+#endif
+#else
+const std::string g_astcCustomizedSo = "/system/lib64/module/hms/graphic/libastcCustomizedEncode.z.so";
+#endif
+using IsCustomizedBlockMode = bool (*)(const int);
+using CustomizedMaxPartitions = int (*)();
+using CustomizedBlockMode = int (*)();
+
+class AstcCustomizedSoManager
+{
+public:
+	AstcCustomizedSoManager()
+	{
+		astcCustomizedSoOpened_ = false;
+		astcCustomizedSoHandle_ = nullptr;
+		isCustomizedBlockModeFunc_ = nullptr;
+		customizedMaxPartitionsFunc_ = nullptr;
+		customizedBlockModeFunc_ = nullptr;
+	}
+	~AstcCustomizedSoManager()
+	{
+		if (!astcCustomizedSoOpened_ || astcCustomizedSoHandle_ == nullptr)
+		{
+			printf("astcenc customized so is not be opened when dlclose!\n");
+			return;
+		}
+#if defined(_WIN32) && !defined(__CYGWIN__)
+		if (!FreeLibrary(astcCustomizedSoHandle_))
+		{
+			printf("astc dll FreeLibrary failed: %s\n", g_astcCustomizedSo);
+		}
+#else
+		if (dlclose(astcCustomizedSoHandle_) != 0)
+		{
+			printf("astcenc so dlclose failed: %s\n", g_astcCustomizedSo.c_str());
+		}
+#endif
+	}
+	IsCustomizedBlockMode isCustomizedBlockModeFunc_;
+	CustomizedMaxPartitions customizedMaxPartitionsFunc_;
+	CustomizedBlockMode customizedBlockModeFunc_;
+	bool LoadSutCustomizedSo()
+	{
+		if (!astcCustomizedSoOpened_)
+		{
+#if defined(_WIN32) && !defined(__CYGWIN__)
+			if ((_access(g_astcCustomizedSo, 0) == -1))
+			{
+				printf("astc customized dll(%s) is not found!\n", g_astcCustomizedSo);
+				return false;
+			}
+			astcCustomizedSoHandle_ = LoadLibrary(g_astcCustomizedSo);
+			if (astcCustomizedSoHandle_ == nullptr)
+			{
+				printf("astc libAstcCustomizedEnc LoadLibrary failed!\n");
+				return false;
+			}
+			isCustomizedBlockModeFunc_ =
+				reinterpret_cast<IsCustomizedBlockMode>(GetProcAddress(astcCustomizedSoHandle_,
+				"IsCustomizedBlockMode"));
+			if (isCustomizedBlockModeFunc_ == nullptr)
+			{
+				printf("astc isCustomizedBlockModeFunc_ GetProcAddress failed!\n");
+				if (!FreeLibrary(astcCustomizedSoHandle_))
+				{
+					printf("astc isCustomizedBlockModeFunc_ FreeLibrary failed!\n");
+				}
+				return false;
+			}
+			customizedMaxPartitionsFunc_ =
+				reinterpret_cast<CustomizedMaxPartitions>(GetProcAddress(astcCustomizedSoHandle_,
+				"CustomizedMaxPartitions"));
+			if (customizedMaxPartitionsFunc_ == nullptr)
+			{
+				printf("astc customizedMaxPartitionsFunc_ GetProcAddress failed!\n");
+				if (!FreeLibrary(astcCustomizedSoHandle_))
+				{
+					printf("astc customizedMaxPartitionsFunc_ FreeLibrary failed!\n");
+				}
+				return false;
+			}
+			customizedBlockModeFunc_ =
+				reinterpret_cast<CustomizedBlockMode>(GetProcAddress(astcCustomizedSoHandle_,
+				"CustomizedBlockMode"));
+			if (customizedBlockModeFunc_ == nullptr)
+			{
+				printf("astc customizedBlockModeFunc_ GetProcAddress failed!\n");
+				if (!FreeLibrary(astcCustomizedSoHandle_))
+				{
+					printf("astc customizedBlockModeFunc_ FreeLibrary failed!\n");
+				}
+				return false;
+			}
+			printf("astcenc customized dll load success: %s!\n", g_astcCustomizedSo);
+#else
+			if (access(g_astcCustomizedSo.c_str(), F_OK) == -1)
+			{
+				printf("astc customized so(%s) is not found!\n", g_astcCustomizedSo.c_str());
+				return false;
+			}
+			astcCustomizedSoHandle_ = dlopen(g_astcCustomizedSo.c_str(), 1);
+			if (astcCustomizedSoHandle_ == nullptr)
+			{
+				printf("astc libAstcCustomizedEnc dlopen failed!\n");
+				return false;
+			}
+			isCustomizedBlockModeFunc_ =
+				reinterpret_cast<IsCustomizedBlockMode>(dlsym(astcCustomizedSoHandle_,
+				"IsCustomizedBlockMode"));
+			if (isCustomizedBlockModeFunc_ == nullptr)
+			{
+				printf("astc isCustomizedBlockModeFunc_ dlsym failed!\n");
+				dlclose(astcCustomizedSoHandle_);
+				astcCustomizedSoHandle_ = nullptr;
+				return false;
+			}
+			customizedMaxPartitionsFunc_ =
+				reinterpret_cast<CustomizedMaxPartitions>(dlsym(astcCustomizedSoHandle_,
+				"CustomizedMaxPartitions"));
+			if (customizedMaxPartitionsFunc_ == nullptr)
+			{
+				printf("astc customizedMaxPartitionsFunc_ dlsym failed!\n");
+				dlclose(astcCustomizedSoHandle_);
+				astcCustomizedSoHandle_ = nullptr;
+				return false;
+			}
+			customizedBlockModeFunc_ =
+				reinterpret_cast<CustomizedBlockMode>(dlsym(astcCustomizedSoHandle_,
+				"CustomizedBlockMode"));
+			if (customizedBlockModeFunc_ == nullptr)
+			{
+				printf("astc customizedBlockModeFunc_ dlsym failed!\n");
+				dlclose(astcCustomizedSoHandle_);
+				astcCustomizedSoHandle_ = nullptr;
+				return false;
+			}
+			printf("astcenc customized so dlopen success: %s\n", g_astcCustomizedSo.c_str());
+#endif
+			astcCustomizedSoOpened_ = true;
+		}
+		return true;
+	}
+private:
+	bool astcCustomizedSoOpened_;
+#if defined(_WIN32) && !defined(__CYGWIN__)
+	HINSTANCE astcCustomizedSoHandle_;
+#else
+	void *astcCustomizedSoHandle_;
+#endif
+};
+extern AstcCustomizedSoManager g_astcCustomizedSoManager;
+#endif
+
 #endif