diff --git a/sane/scanner.cpp b/sane/scanner.cpp
index d46ad25..6734611 100644
--- a/sane/scanner.cpp
+++ b/sane/scanner.cpp
@@ -369,8 +369,8 @@ namespace callback
 
 	static int load_dll(const char* path_dll, HMODULE* dll)
 	{
-		HMODULE h = LoadLibraryA(path_dll);
-		int		ret = GetLastError();
+		HMODULE h = NULL;	// LoadLibraryA(path_dll);		// 3rd APP like Dynamsoft will treat the exception, so we force to SetDllDirectoryW first and load later
+		int		ret = 0;	//  GetLastError();
 		char	info[128] = { 0 };
 
 		sprintf_s(info, _countof(info) - 1, " = %d\r\n", ret);
diff --git a/twain/load_sane.cpp b/twain/load_sane.cpp
index c9327a1..76004d6 100644
--- a/twain/load_sane.cpp
+++ b/twain/load_sane.cpp
@@ -108,10 +108,11 @@ namespace load_sane_util
 	}
 	static int load_dll(const wchar_t* path_dll, HMODULE* dll)
 	{
-		HMODULE h = LoadLibraryW(path_dll);
-		int		ret = GetLastError();
+		HMODULE h = NULL;	// LoadLibraryW(path_dll);	// 3rd APP like Dynamsoft will treat the exception, so we force to SetDllDirectoryW first and load later
+		int		ret = 0;	// GetLastError();
 		wchar_t	info[128] = { 0 };
 
+		// SetSearchPathMode(BASE_SEARCH_PATH_ENABLE_SAFE_SEARCHMODE);
 		swprintf_s(info, _countof(info) - 1, L" = %d\r\n", ret);
 		OutputDebugStringW((L"[TWAIN]Load: " + std::wstring(path_dll) + info).c_str());
 		if (!h && (ret == ERROR_MOD_NOT_FOUND || ret == ERROR_BAD_EXE_FORMAT || ret == 0))