diff --git a/hgdriver/hgdev/scanner_manager.cpp b/hgdriver/hgdev/scanner_manager.cpp
index 7a3c68a..ad65862 100644
--- a/hgdriver/hgdev/scanner_manager.cpp
+++ b/hgdriver/hgdev/scanner_manager.cpp
@@ -682,9 +682,10 @@ scanner_err hg_scanner_mgr::hg_scanner_enum(ScannerInfo* scanner_list, long* cou
     std::vector<OLSCANNER> devusbuf;
     long        size = *count;
     scanner_err      ret = SCANNER_ERR_OK;
-    std::string g_vendor = GET_LANG(COMPANY_NAME, &islang);
+    std::string g_vendor(from_default_language(COMPANY_NAME, nullptr));
     get_online_devices(devusbuf);
     *count = devusbuf.size();
+    utils::to_log(LOG_LEVEL_ALL, "current language(%d) of '%s' is '%s'\n", lang_get_cur_code_page(), COMPANY_NAME, g_vendor.c_str());
 	if (*count > size)
 	{
         ret = SCANNER_ERR_INSUFFICIENT_MEMORY;
diff --git a/twain/ds/huagaods.cpp b/twain/ds/huagaods.cpp
index 842e3d1..7a5bf9c 100644
--- a/twain/ds/huagaods.cpp
+++ b/twain/ds/huagaods.cpp
@@ -592,7 +592,7 @@ static void copy_type(Str255& to, std::string from)
 }
 static void copy_type(std::string& to, Str255 from)
 {
-	to = from.data();
+	to = std::move(utils::ansi2utf8(from.data()));
 }
 static void copy_type(Str64& to, std::string from)
 {
@@ -1030,6 +1030,22 @@ Result huagao_ds::identityOpenDs(const Identity& id)
 	}
 	utils::to_log(1, "Double check mode = %d\r\n", double_check_mode_);
 
+	int nobd = get_config_number("twain-app", "no-bitdepth", 0, -1);
+	if (nobd == -1)
+	{
+		char	pe[MAX_PATH] = { 0 }, * name = NULL;
+		GetModuleFileNameA(NULL, pe, _countof(pe) - 1);
+		name = strrchr(pe, '\\');
+		if (name++ == NULL)
+			name = pe;
+		if (STRICMP(name, "\u519B\u961F\u626B\u63CF2.0.exe") == 0)	// 军队扫描2.0.exe
+			nobd = 1;
+		else
+			nobd = 0;
+	}
+	no_bitdepth_ = nobd == 1;
+	utils::to_log(LOG_LEVEL_DEBUG, "BitDepth protocol enabled = %d\r\n", nobd);
+
 	m_compression = Compression::None;
 	init_support_caps();
 	m_fileXfer.setFormat(ImageFileFormat::Bmp);
@@ -1946,6 +1962,8 @@ void huagao_ds::init_support_caps(void)
 		int val = 0;
 		GET_SANE_OPT_EX(int, scanner_, ex_color_mode, NULL, &all);
 		if (Msg::Set == msg || Msg::Reset == msg) {
+			if (no_bitdepth_)
+				return success();
 			int	ret = SCANNER_ERR_INVALID_PARAMETER;
 			val = all[sane_opts::RANGE_POS_DEFAULT];
 			if (Msg::Set == msg)
@@ -3682,14 +3700,14 @@ std::string huagao_ds::get_config_value(const char* sec, const char* key)
 
 	return v;
 }
-DWORD huagao_ds::get_config_number(const char* sec, const char* key)
+DWORD huagao_ds::get_config_number(const char* sec, const char* key, DWORD def, DWORD empty)
 {
 	std::string cfg_f(get_config_file());
 
 	if (cfg_f.empty())
-		return 0;
+		return empty;
 	else
-		return GetPrivateProfileIntA(sec, key, 0, get_config_file().c_str());
+		return GetPrivateProfileIntA(sec, key, def, get_config_file().c_str());
 }
 int huagao_ds::handle_scanner_event(int ev, bool from_event_proc)
 {
diff --git a/twain/ds/huagaods.hpp b/twain/ds/huagaods.hpp
index 4f684f9..1859ca6 100644
--- a/twain/ds/huagaods.hpp
+++ b/twain/ds/huagaods.hpp
@@ -57,6 +57,7 @@ class huagao_ds : public Twpp::SourceFromThis<huagao_ds> {
     bool            app_trigger_event_;
     bool            bUiOnly_;
     bool            show_setting_;
+    bool            no_bitdepth_ = false;   // 军队扫描2.0.exe set this but sychronize to APP
     int             count_;
 
     volatile bool   notfify_close_ = false;
@@ -80,7 +81,7 @@ class huagao_ds : public Twpp::SourceFromThis<huagao_ds> {
     void init_caps_from_sane_directly(void);
     std::string get_config_file(void);
     std::string get_config_value(const char* sec, const char* key);
-    DWORD get_config_number(const char* sec, const char* key);
+    DWORD get_config_number(const char* sec, const char* key, DWORD def = 0, DWORD empty = 0);
     int handle_scanner_event(int ev, bool from_event_proc = true);
     int get_scanned_image_count(DWORD timeout);
     void trigger_ProcessEvent(Twpp::DataGroup dg, Twpp::Dat dat, Twpp::Msg msg);