diff --git a/device/scanner.rc b/device/scanner.rc
index 46373d1..099d290 100644
--- a/device/scanner.rc
+++ b/device/scanner.rc
@@ -51,8 +51,8 @@ END
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 4,26,10000,22264
- PRODUCTVERSION 4,26,10000,22264
+ FILEVERSION 4,27,10000,22266
+ PRODUCTVERSION 4,27,10000,22266
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -69,12 +69,12 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "宁波华高信息科技有限公司"
             VALUE "FileDescription", "华高扫描仪应用程序"
-            VALUE "FileVersion", "4.26.10000.22264"
+            VALUE "FileVersion", "4.27.10000.22266"
             VALUE "InternalName", "scanner.dll"
             VALUE "LegalCopyright", "Copyright (C) HUAGOScan 2022"
             VALUE "OriginalFilename", "scanner.dll"
             VALUE "ProductName", "HUAGOScan"
-            VALUE "ProductVersion", "4.26.10000.22264"
+            VALUE "ProductVersion", "4.27.10000.22266"
         END
     END
     BLOCK "VarFileInfo"
diff --git a/sane/s2t_api.h b/sane/s2t_api.h
index 0c9e0c5..36e28ac 100644
--- a/sane/s2t_api.h
+++ b/sane/s2t_api.h
@@ -391,7 +391,10 @@ namespace sane_opts
 		if(ind > 0)														\
 			ret = object->set_value(ind, val);							\
 		else															\
+		{																\
 			ret = SCANNER_ERR_INVALID_PARAMETER;						\
+			load_sane_util::log_info((std::wstring(L"Fatal: property '") + L###id_name + L"' not found !!!\r\n").c_str(), 0);	\
+		}																\
 	}
 
 typedef unsigned int SCANNERID;
diff --git a/sane/sane.rc b/sane/sane.rc
index 54c9c10..a92e58b 100644
--- a/sane/sane.rc
+++ b/sane/sane.rc
@@ -248,8 +248,8 @@ END
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 4,26,10000,22264
- PRODUCTVERSION 4,26,10000,22264
+ FILEVERSION 4,27,10000,22266
+ PRODUCTVERSION 4,27,10000,22266
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -266,12 +266,12 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "宁波华高信息科技有限公司"
             VALUE "FileDescription", "华高扫描仪应用程序"
-            VALUE "FileVersion", "4.26.10000.22264"
+            VALUE "FileVersion", "4.27.10000.22266"
             VALUE "InternalName", "sane.dll"
             VALUE "LegalCopyright", "Copyright (C) HUAGOScan 2022"
             VALUE "OriginalFilename", "sane.dll"
             VALUE "ProductName", "HUAGOScan"
-            VALUE "ProductVersion", "4.26.10000.22264"
+            VALUE "ProductVersion", "4.27.10000.22266"
         END
     END
     BLOCK "VarFileInfo"
diff --git a/sane/scanner.cpp b/sane/scanner.cpp
index ad6bc1e..500fa54 100644
--- a/sane/scanner.cpp
+++ b/sane/scanner.cpp
@@ -576,26 +576,43 @@ void scanner::extension_text_direction(int id)
 void scanner::extension_page(int id)
 {
 	EXAPI	ea;
+	wchar_t	msg[128] = { 0 };
 
 	ea.ind = ex_duplex_id_ = ex_id_++;
 	ea.base_ind = id;
 	ea.ex_api = &scanner::handle_ex_duplex;
 	ex_opts_.push_back(ea);
+	{
+		swprintf_s(msg, _countof(msg) - 1, L"handle_ex_duplex of id: %d\r\n", ea.ind);
+		log_info(msg, 0);
+	}
 
 	ea.ind = ex_discard_blank_page_id_ = ex_id_++;
 	ea.base_ind = id;
 	ea.ex_api = &scanner::handle_ex_discard_blank_page;
 	ex_opts_.push_back(ea);
+	{
+		swprintf_s(msg, _countof(msg) - 1, L"handle_ex_discard_blank_page of id: %d\r\n", ea.ind);
+		log_info(msg, 0);
+	}
 
 	ea.ind = ex_discard_blank_receipt_id_ = ex_id_++;
 	ea.base_ind = id;
 	ea.ex_api = &scanner::handle_ex_discard_blank_receipt;
 	ex_opts_.push_back(ea);
+	{
+		swprintf_s(msg, _countof(msg) - 1, L"handle_ex_discard_blank_receipt of id: %d\r\n", ea.ind);
+		log_info(msg, 0);
+	}
 
 	ea.ind = ex_is_page_fold_id_ = ex_id_++;
 	ea.base_ind = id;
 	ea.ex_api = &scanner::handle_ex_page_fold;
 	ex_opts_.push_back(ea);
+	{
+		swprintf_s(msg, _countof(msg) - 1, L"handle_ex_page_fold of id: %d\r\n", ea.ind);
+		log_info(msg, 0);
+	}
 }
 void scanner::extension_erase_color(int id)
 {
@@ -1976,6 +1993,12 @@ COM_API_IMPLEMENT(scanner, int, set_value(int sn, void* val))
 	SANE_Int	after = 0;
 	SANE_Option_Descriptor* desc = hg_sane_middleware::instance()->get_option_descriptor(handle_, sn);
 
+	{
+		wchar_t	msg[128] = { 0 };
+		swprintf_s(msg, _countof(msg) - 1, L"set_value of ID: %d\r\n", sn);
+		log_info(msg, 0);
+	}
+
 	if (ex == ex_opts_.end())
 	{
 		if (!set_option_value_with_parent(sn, val, &ret))