diff --git a/build/builder/core/env.py b/build/builder/core/env.py
index 5a1dfe0..a312dbc 100644
--- a/build/builder/core/env.py
+++ b/build/builder/core/env.py
@@ -199,6 +199,8 @@ class Env(object):
 
     def _get_nsis(self):
         p = self._winreg_read(winreg.HKEY_LOCAL_MACHINE, r'SOFTWARE\NSIS\Unicode', '')
+        if p is None:
+            p = self._winreg_read(winreg.HKEY_LOCAL_MACHINE, r'SOFTWARE\NSIS', '')
         return os.path.join(p[0], 'makensis.exe') if p is not None else None
 
     def _winreg_read(self, base, path, key):
diff --git a/client/tp_assist/tp_assist.cpp b/client/tp_assist/tp_assist.cpp
index 8a2592f..f36006d 100644
--- a/client/tp_assist/tp_assist.cpp
+++ b/client/tp_assist/tp_assist.cpp
@@ -4,6 +4,11 @@
 #include "resource.h"
 #include "dlg_main.h"
 #include "ts_http_rpc.h"
+
+#ifdef _DEBUG
+#	include <vld.h>
+#endif
+
 #pragma comment(lib, "shlwapi.lib")
 
 #define WMU_INSTANCE_EXIT		(WM_USER + 2)
diff --git a/client/tp_assist/tp_assist.vs2015.vcxproj b/client/tp_assist/tp_assist.vs2015.vcxproj
index bda9abb..6d36e81 100644
--- a/client/tp_assist/tp_assist.vs2015.vcxproj
+++ b/client/tp_assist/tp_assist.vs2015.vcxproj
@@ -46,6 +46,8 @@
     <LinkIncremental>true</LinkIncremental>
     <OutDir>..\..\out\client\$(PlatformTarget)\$(Configuration)\</OutDir>
     <IntDir>..\..\out\_tmp_\$(ProjectName)\$(PlatformTarget)\$(Configuration)\</IntDir>
+    <IncludePath>D:\apps\vld\include;$(IncludePath)</IncludePath>
+    <LibraryPath>D:\apps\vld\lib\Win32;$(LibraryPath)</LibraryPath>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
     <LinkIncremental>false</LinkIncremental>
diff --git a/client/tp_assist/ts_http_rpc.cpp b/client/tp_assist/ts_http_rpc.cpp
index 97ceb56..94dcbc2 100644
--- a/client/tp_assist/ts_http_rpc.cpp
+++ b/client/tp_assist/ts_http_rpc.cpp
@@ -105,7 +105,7 @@ void http_rpc_main_loop(void)
 
 	g_http_interface.run();
 
-	EXLOGW("[prc] main loop end.\n");
+	EXLOGW("[rpc] main loop end.\n");
 }
 
 void http_rpc_stop(void)
@@ -188,7 +188,6 @@ bool TsHttpRpc::init(const char* ip, int port)
 	else
 		sprintf_s(addr, 128, "%s:%d", ip, port);
 
-	mg_mgr_init(&m_mg_mgr, NULL);
 	nc = mg_bind(&m_mg_mgr, addr, _mg_event_handler);
 	if (nc == NULL)
 	{
@@ -250,7 +249,7 @@ void TsHttpRpc::_mg_event_handler(struct mg_connection *nc, int ev, void *ev_dat
 		memcpy(&_uri[0], hm->uri.p, hm->uri.len);
 		uri = &_uri[0];
 
-#ifdef TS_DEBUG
+#ifdef EX_DEBUG
 		char* dbg_method = NULL;
 		if (hm->method.len == 3 && 0 == memcmp(hm->method.p, "GET", hm->method.len))
 			dbg_method = "GET";
@@ -319,6 +318,7 @@ void TsHttpRpc::_mg_event_handler(struct mg_connection *nc, int ev, void *ev_dat
 
 				mg_printf(nc, "HTTP/1.0 200 OK\r\nAccess-Control-Allow-Origin: *\r\nContent-Length: %d\r\nContent-Type: %s\r\n\r\n", file_size, content_type.c_str());
 				mg_send(nc, buf, file_size);
+				delete []buf;
 				nc->flags |= MG_F_SEND_AND_CLOSE;
 				return;
 			}