diff --git a/client/IOCPClient.cpp b/client/IOCPClient.cpp
index 6e97d88..b7063d8 100644
--- a/client/IOCPClient.cpp
+++ b/client/IOCPClient.cpp
@@ -388,7 +388,7 @@ DWORD WINAPI IOCPClient::WorkThreadProc(LPVOID lParam)
             }
         }
     }
-    CloseHandle(This->m_hWorkThread);
+    SAFE_CLOSE_HANDLE(This->m_hWorkThread);
     This->m_hWorkThread = NULL;
     This->m_bWorkThread = S_STOP;
     This->m_bIsRunning = FALSE;
@@ -514,7 +514,7 @@ VOID IOCPClient::OnServerReceiving(CBuffer* m_CompressedBuffer, char* szBuffer,
 // 关闭压缩开关时，SendWithSplit比较耗时。
 BOOL IOCPClient::OnServerSending(const char* szBuffer, ULONG ulOriginalLength, PkgMask* mask)  //Hello
 {
-    AUTO_TICK(40, "");
+    AUTO_TICK(100, std::to_string(ulOriginalLength));
     assert (ulOriginalLength > 0);
     {
         int cmd = BYTE(szBuffer[0]);
diff --git a/client/ScreenCapture.h b/client/ScreenCapture.h
index e6af4cc..3700581 100644
--- a/client/ScreenCapture.h
+++ b/client/ScreenCapture.h
@@ -15,7 +15,7 @@
 #include <future>
 #include <emmintrin.h>  // SSE2
 #include "X264Encoder.h"
-
+#include "common/file_upload.h"
 
 class ThreadPool
 {
@@ -120,6 +120,9 @@ public:
     int				 m_SendQuality;		 // 发送质量
 
     LPBITMAPINFO     m_BitmapInfor_Full; // BMP信息
+    LPBITMAPINFO     m_BitmapInfor_Send; // 发送的BMP信息
+    BYTE             *m_BmpZoomFirst;    // 第一个缩放帧
+    BYTE             *m_BmpZoomBuffer;   // 缩放缓存
     BYTE             m_bAlgorithm;       // 屏幕差异算法
 
     int				 m_iScreenX;		 // 起始x坐标
@@ -145,6 +148,9 @@ public:
         m_FrameID(0), m_GOP(DEFAULT_GOP), m_iScreenX(0), m_iScreenY(0), m_biBitCount(n),
         m_SendKeyFrame(false), m_encoder(nullptr)
     {
+        m_BitmapInfor_Send = nullptr;
+        m_BmpZoomBuffer = nullptr;
+        m_BmpZoomFirst = nullptr;
         m_BlockNum = 8;
         m_ThreadPool = new ThreadPool(m_BlockNum);
         static auto monitors = GetAllMonitors();
@@ -201,6 +207,9 @@ public:
             m_BitmapInfor_Full = NULL;
         }
         SAFE_DELETE_ARRAY(m_RectBuffer);
+        SAFE_DELETE(m_BitmapInfor_Send);
+        SAFE_DELETE_ARRAY(m_BmpZoomBuffer);
+        SAFE_DELETE_ARRAY(m_BmpZoomFirst);
 
         for (int blockY = 0; blockY < m_BlockNum; ++blockY) {
             SAFE_DELETE_ARRAY(m_BlockBuffers[blockY]);
@@ -471,8 +480,8 @@ public:
 
     virtual int GetBMPSize() const
     {
-        assert(m_BitmapInfor_Full);
-        return m_BitmapInfor_Full->bmiHeader.biSizeImage;
+        assert(m_BitmapInfor_Send);
+        return m_BitmapInfor_Send->bmiHeader.biSizeImage;
     }
 
     // SSE2 优化：BGRA 转单通道灰度，一次处理 4 个像素，输出 4 字节
@@ -521,7 +530,7 @@ public:
         bmpInfo->bmiHeader.biWidth = biWidth;
         bmpInfo->bmiHeader.biHeight = biHeight;
         bmpInfo->bmiHeader.biPlanes = 1;
-        bmpInfo->bmiHeader.biBitCount = 32;
+        bmpInfo->bmiHeader.biBitCount = biBitCount;
         bmpInfo->bmiHeader.biCompression = BI_RGB;
         bmpInfo->bmiHeader.biSizeImage = biWidth * biHeight * 4;
         return bmpInfo;
@@ -563,7 +572,7 @@ public:
         memcpy(data + offset, &++m_FrameID, sizeof(int));
         offset += sizeof(int);
 #if SCREENSPY_WRITE
-        WriteBitmap(m_BitmapInfor_Full, nextData, "GHOST", m_FrameID);
+        WriteBitmap(m_BitmapInfor_Send, nextData, "GHOST", m_FrameID);
 #endif
 #else
         m_FrameID++;
@@ -572,20 +581,20 @@ public:
         if (keyFrame) {
             switch (algo) {
             case ALGORITHM_DIFF: {
-                *ulNextSendLength = 1 + offset + m_BitmapInfor_Full->bmiHeader.biSizeImage;
-                memcpy(data + offset, nextData, m_BitmapInfor_Full->bmiHeader.biSizeImage);
+                *ulNextSendLength = 1 + offset + m_BitmapInfor_Send->bmiHeader.biSizeImage;
+                memcpy(data + offset, nextData, m_BitmapInfor_Send->bmiHeader.biSizeImage);
                 break;
             }
             case ALGORITHM_GRAY: {
-                *ulNextSendLength = 1 + offset + m_BitmapInfor_Full->bmiHeader.biSizeImage;
-                ToGray(data + offset, nextData, m_BitmapInfor_Full->bmiHeader.biSizeImage);
+                *ulNextSendLength = 1 + offset + m_BitmapInfor_Send->bmiHeader.biSizeImage;
+                ToGray(data + offset, nextData, m_BitmapInfor_Send->bmiHeader.biSizeImage);
                 break;
             }
             case ALGORITHM_H264: {
                 uint8_t* encoded_data = nullptr;
                 uint32_t  encoded_size = 0;
-                int err = m_encoder->encode(nextData, 32, 4*m_BitmapInfor_Full->bmiHeader.biWidth,
-                                            m_ulFullWidth, m_ulFullHeight, &encoded_data, &encoded_size);
+                int err = m_encoder->encode(nextData, 32, 4* m_BitmapInfor_Send->bmiHeader.biWidth,
+                    m_BitmapInfor_Send->bmiHeader.biWidth, m_BitmapInfor_Send->bmiHeader.biHeight, &encoded_data, &encoded_size);
                 if (err) {
                     return nullptr;
                 }
@@ -596,7 +605,7 @@ public:
             default:
                 break;
             }
-            memcpy(GetFirstBuffer(), nextData, m_BitmapInfor_Full->bmiHeader.biSizeImage);
+            memcpy(GetFirstBuffer(), nextData, m_BitmapInfor_Send->bmiHeader.biSizeImage);
         } else {
             switch (algo) {
             case ALGORITHM_DIFF:
@@ -607,8 +616,8 @@ public:
             case ALGORITHM_H264: {
                 uint8_t* encoded_data = nullptr;
                 uint32_t  encoded_size = 0;
-                int err = m_encoder->encode(nextData, 32, 4 * m_BitmapInfor_Full->bmiHeader.biWidth,
-                                            m_ulFullWidth, m_ulFullHeight, &encoded_data, &encoded_size);
+                int err = m_encoder->encode(nextData, 32, 4 * m_BitmapInfor_Send->bmiHeader.biWidth,
+                    m_BitmapInfor_Send->bmiHeader.biWidth, m_BitmapInfor_Send->bmiHeader.biHeight, &encoded_data, &encoded_size);
                 if (err) {
                     return nullptr;
                 }
@@ -646,7 +655,7 @@ public:
     // 获取位图结构信息
     virtual const LPBITMAPINFO& GetBIData() const
     {
-        return m_BitmapInfor_Full;
+        return m_BitmapInfor_Send;
     }
 
 public: // 纯虚接口
@@ -656,4 +665,11 @@ public: // 纯虚接口
 
     // 获取下一帧屏幕
     virtual LPBYTE ScanNextScreen() = 0;
+
+    virtual LPBYTE scaleBitmap(LPBYTE target, LPBYTE bitmap) {
+        if (m_ulFullWidth == m_BitmapInfor_Send->bmiHeader.biWidth && m_ulFullHeight == m_BitmapInfor_Send->bmiHeader.biHeight)
+            return bitmap;
+        return ScaleBitmap(target, (uint8_t*)bitmap, m_ulFullWidth, m_ulFullHeight, m_BitmapInfor_Send->bmiHeader.biWidth,
+            m_BitmapInfor_Send->bmiHeader.biHeight);
+    }
 };
diff --git a/client/ScreenCapturerDXGI.h b/client/ScreenCapturerDXGI.h
index 7096501..b996d13 100644
--- a/client/ScreenCapturerDXGI.h
+++ b/client/ScreenCapturerDXGI.h
@@ -107,20 +107,22 @@ public:
             d3dDevice->CreateTexture2D(&desc, NULL, &cpuTexture);
 
             // 9. ��ʼ�� BITMAPINFO
-            m_BitmapInfor_Full = (BITMAPINFO*)new char[sizeof(BITMAPINFO)];
-            memset(m_BitmapInfor_Full, 0, sizeof(BITMAPINFO));
-            m_BitmapInfor_Full->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
-            m_BitmapInfor_Full->bmiHeader.biWidth = m_ulFullWidth;
-            m_BitmapInfor_Full->bmiHeader.biHeight = m_ulFullHeight;
-            m_BitmapInfor_Full->bmiHeader.biPlanes = 1;
-            m_BitmapInfor_Full->bmiHeader.biBitCount = 32;
-            m_BitmapInfor_Full->bmiHeader.biCompression = BI_RGB;
-            m_BitmapInfor_Full->bmiHeader.biSizeImage = m_ulFullWidth * m_ulFullHeight * 4;
+            m_BitmapInfor_Full = ConstructBitmapInfo(32, m_ulFullWidth, m_ulFullHeight);
+            m_BitmapInfor_Send = new BITMAPINFO(*m_BitmapInfor_Full);
+			if (m_bAlgorithm != ALGORITHM_H264) {
+				m_BitmapInfor_Send->bmiHeader.biWidth = min(1920, m_BitmapInfor_Send->bmiHeader.biWidth);
+				m_BitmapInfor_Send->bmiHeader.biHeight = min(1080, m_BitmapInfor_Send->bmiHeader.biHeight);
+				m_BitmapInfor_Send->bmiHeader.biSizeImage =
+					((m_BitmapInfor_Send->bmiHeader.biWidth * m_BitmapInfor_Send->bmiHeader.biBitCount + 31) / 32) *
+					4 * m_BitmapInfor_Send->bmiHeader.biHeight;
+			}
 
             // 10. ������Ļ������
             m_FirstBuffer = new BYTE[m_BitmapInfor_Full->bmiHeader.biSizeImage + 1];
             m_NextBuffer = new BYTE[m_BitmapInfor_Full->bmiHeader.biSizeImage + 1];
             m_RectBuffer = new BYTE[m_BitmapInfor_Full->bmiHeader.biSizeImage * 2 + 12];
+			m_BmpZoomBuffer = new BYTE[m_BitmapInfor_Send->bmiHeader.biSizeImage * 2 + 12];
+			m_BmpZoomFirst = nullptr;
 
             break;
         } while (true);
@@ -145,13 +147,24 @@ public:
         if (d3dDevice) d3dDevice->Release();
     }
 
+	virtual LPBYTE scaleBitmap(LPBYTE target, LPBYTE bitmap) override {
+        if (m_ulFullWidth == m_BitmapInfor_Send->bmiHeader.biWidth && m_ulFullHeight == m_BitmapInfor_Send->bmiHeader.biHeight) {
+            memcpy(target, bitmap, m_BitmapInfor_Send->bmiHeader.biSizeImage);
+            return bitmap;
+        }
+		return ScaleBitmap(target, (uint8_t*)bitmap, m_ulFullWidth, m_ulFullHeight, m_BitmapInfor_Send->bmiHeader.biWidth,
+			m_BitmapInfor_Send->bmiHeader.biHeight);
+	}
+
     LPBYTE GetFirstScreenData(ULONG* ulFirstScreenLength) override
     {
         int ret = CaptureFrame(m_FirstBuffer, ulFirstScreenLength, 1);
+        scaleBitmap(m_BmpZoomBuffer, m_FirstBuffer);
+        memcpy(m_FirstBuffer, m_BmpZoomBuffer, m_BitmapInfor_Send->bmiHeader.biSizeImage);
         if (ret)
             return nullptr;
         if (m_bAlgorithm == ALGORITHM_GRAY) {
-            ToGray(1 + m_RectBuffer, 1 + m_RectBuffer, m_BitmapInfor_Full->bmiHeader.biSizeImage);
+            ToGray(1 + m_RectBuffer, 1 + m_RectBuffer, m_BitmapInfor_Send->bmiHeader.biSizeImage);
         }
         m_FirstBuffer[0] = TOKEN_FIRSTSCREEN;
         return m_FirstBuffer;
@@ -161,6 +174,8 @@ public:
     {
         ULONG ulNextScreenLength = 0;
         int ret = CaptureFrame(m_NextBuffer, &ulNextScreenLength, 0);
+		scaleBitmap(m_BmpZoomBuffer, m_NextBuffer);
+		memcpy(m_NextBuffer, m_BmpZoomBuffer, m_BitmapInfor_Send->bmiHeader.biSizeImage);
         if (ret)
             return nullptr;
 
diff --git a/client/ScreenManager.cpp b/client/ScreenManager.cpp
index 65d5dea..30eb773 100644
--- a/client/ScreenManager.cpp
+++ b/client/ScreenManager.cpp
@@ -349,7 +349,7 @@ DWORD WINAPI CScreenManager::WorkThreadProc(LPVOID lParam)
                 if (frames == ++c1) { // 连续一定次数耗时长
                     s0 = (s0 <= sleep*4) ? s0*alpha : s0;
                     c1 = 0;
-#ifdef _DEBUG
+#if _DEBUG
                     if (1000./s0>1.0)
                         Mprintf("[+]SendScreen Span= %dms, s0= %f, fps= %f\n", span, s0, 1000./s0);
 #endif
@@ -359,7 +359,7 @@ DWORD WINAPI CScreenManager::WorkThreadProc(LPVOID lParam)
                 if (frames == ++c2) { // 连续一定次数耗时短
                     s0 = (s0 >= sleep/4) ? s0/alpha : s0;
                     c2 = 0;
-#ifdef _DEBUG
+#if _DEBUG
                     if (1000./s0<20.0)
                         Mprintf("[-]SendScreen Span= %dms, s0= %f, fps= %f\n", span, s0, 1000./s0);
 #endif
@@ -457,7 +457,7 @@ VOID CScreenManager::OnReceive(PBYTE szBuffer, ULONG ulLength)
 {
     switch(szBuffer[0]) {
     case COMMAND_BYE: {
-        Mprintf("[CScreenManager] Received BYE\n");
+        Mprintf("[CScreenManager] Received BYE: %s\n", ToPekingTimeAsString(0).c_str());
         m_bIsWorking = FALSE;
         m_ClientObject->StopRunning();
         break;
@@ -634,6 +634,7 @@ VOID CScreenManager::SendFirstScreen()
 
 const char* CScreenManager::GetNextScreen(ULONG &ulNextSendLength)
 {
+    AUTO_TICK(100, "GetNextScreen");
     LPVOID	NextScreenData = m_ScreenSpyObject->GetNextScreenData(&ulNextSendLength);
 
     if (ulNextSendLength == 0 || NextScreenData == NULL) {
@@ -645,6 +646,7 @@ const char* CScreenManager::GetNextScreen(ULONG &ulNextSendLength)
 
 VOID CScreenManager::SendNextScreen(const char* szBuffer, ULONG ulNextSendLength)
 {
+    AUTO_TICK(100, std::to_string(ulNextSendLength));
     m_ClientObject->Send2Server(szBuffer, ulNextSendLength);
 }
 
diff --git a/client/ScreenSpy.cpp b/client/ScreenSpy.cpp
index ad49c06..b6edd8a 100644
--- a/client/ScreenSpy.cpp
+++ b/client/ScreenSpy.cpp
@@ -16,17 +16,16 @@ CScreenSpy::CScreenSpy(ULONG ulbiBitCount, BYTE algo, BOOL vDesk, int gop, BOOL
 {
     m_GOP = gop;
 
-    m_BitmapInfor_Full = new BITMAPINFO();
-    memset(m_BitmapInfor_Full, 0, sizeof(BITMAPINFO));
-    BITMAPINFOHEADER* BitmapInforHeader = &(m_BitmapInfor_Full->bmiHeader);
-    BitmapInforHeader->biSize = sizeof(BITMAPINFOHEADER);
-    BitmapInforHeader->biWidth = m_ulFullWidth; //1080
-    BitmapInforHeader->biHeight = m_ulFullHeight; //1920
-    BitmapInforHeader->biPlanes = 1;
-    BitmapInforHeader->biBitCount = ulbiBitCount; //ͨ��Ϊ32
-    BitmapInforHeader->biCompression = BI_RGB;
-    BitmapInforHeader->biSizeImage =
-        ((BitmapInforHeader->biWidth * BitmapInforHeader->biBitCount + 31) / 32) * 4 * BitmapInforHeader->biHeight;
+    m_BitmapInfor_Full = ConstructBitmapInfo(ulbiBitCount, m_ulFullWidth, m_ulFullHeight);
+    
+    m_BitmapInfor_Send = new BITMAPINFO(*m_BitmapInfor_Full);
+    if (m_bAlgorithm != ALGORITHM_H264) {
+        m_BitmapInfor_Send->bmiHeader.biWidth = min(1920, m_BitmapInfor_Send->bmiHeader.biWidth);
+        m_BitmapInfor_Send->bmiHeader.biHeight = min(1080, m_BitmapInfor_Send->bmiHeader.biHeight);
+        m_BitmapInfor_Send->bmiHeader.biSizeImage =
+            ((m_BitmapInfor_Send->bmiHeader.biWidth * m_BitmapInfor_Send->bmiHeader.biBitCount + 31) / 32) * 
+            4 * m_BitmapInfor_Send->bmiHeader.biHeight;
+    }
 
     m_hDeskTopDC = GetDC(NULL);
 
@@ -42,6 +41,9 @@ CScreenSpy::CScreenSpy(ULONG ulbiBitCount, BYTE algo, BOOL vDesk, int gop, BOOL
     ::SelectObject(m_hDiffMemDC, m_DiffBitmapHandle);
 
     m_RectBuffer = new BYTE[m_BitmapInfor_Full->bmiHeader.biSizeImage * 2 + 12];
+    m_BmpZoomBuffer = new BYTE[m_BitmapInfor_Send->bmiHeader.biSizeImage * 2 + 12];
+    m_BmpZoomFirst = new BYTE[m_BitmapInfor_Send->bmiHeader.biSizeImage * 2 + 12];
+    m_FirstBuffer = scaleBitmap(m_BmpZoomFirst, m_FirstBuffer);
 
     m_bVirtualPaint = vDesk;
     m_data.Create(m_hDeskTopDC, m_iScreenX, m_iScreenY, m_ulFullWidth, m_ulFullHeight);
@@ -87,11 +89,12 @@ LPBYTE CScreenSpy::GetFirstScreenData(ULONG* ulFirstScreenLength)
 {
     ScanScreen(m_hFullMemDC, m_hDeskTopDC, m_ulFullWidth, m_ulFullHeight);
     m_RectBuffer[0] = TOKEN_FIRSTSCREEN;
-    memcpy(1 + m_RectBuffer, m_BitmapData_Full, m_BitmapInfor_Full->bmiHeader.biSizeImage);
+    LPBYTE bmp = scaleBitmap(m_BmpZoomBuffer, (LPBYTE)m_BitmapData_Full);
+    memcpy(1 + m_RectBuffer, bmp, m_BitmapInfor_Send->bmiHeader.biSizeImage);
     if (m_bAlgorithm == ALGORITHM_GRAY) {
-        ToGray(1 + m_RectBuffer, 1 + m_RectBuffer, m_BitmapInfor_Full->bmiHeader.biSizeImage);
+        ToGray(1 + m_RectBuffer, 1 + m_RectBuffer, m_BitmapInfor_Send->bmiHeader.biSizeImage);
     }
-    *ulFirstScreenLength = m_BitmapInfor_Full->bmiHeader.biSizeImage;
+    *ulFirstScreenLength = m_BitmapInfor_Send->bmiHeader.biSizeImage;
 
     return m_RectBuffer;  //�ڴ�
 }
diff --git a/client/ScreenSpy.h b/client/ScreenSpy.h
index 8b0f3a7..536deb8 100644
--- a/client/ScreenSpy.h
+++ b/client/ScreenSpy.h
@@ -126,12 +126,12 @@ public:
 
     const LPBITMAPINFO& GetBIData() const
     {
-        return m_BitmapInfor_Full;
+        return m_BitmapInfor_Send;
     }
 
     ULONG GetFirstScreenLength() const
     {
-        return m_BitmapInfor_Full->bmiHeader.biSizeImage;
+        return m_BitmapInfor_Send->bmiHeader.biSizeImage;
     }
 
     static BOOL PaintWindow(HWND hWnd, EnumHwndsPrintData* data)
@@ -194,7 +194,8 @@ public:
     virtual LPBYTE ScanNextScreen()
     {
         ScanScreen(m_hDiffMemDC, m_hDeskTopDC, m_ulFullWidth, m_ulFullHeight);
-        return (LPBYTE)m_DiffBitmapData_Full;
+        LPBYTE bmp = scaleBitmap(m_BmpZoomBuffer, (LPBYTE)m_DiffBitmapData_Full);
+        return (LPBYTE)bmp;
     }
 
     VOID ScanScreen(HDC hdcDest, HDC hdcSour, ULONG ulWidth, ULONG ulHeight);
diff --git a/client/StdAfx.h b/client/StdAfx.h
index 9c4b678..bc4c46b 100644
--- a/client/StdAfx.h
+++ b/client/StdAfx.h
@@ -61,5 +61,7 @@
 #define SAFE_DELETE_AR(p) if(NULL !=(p)){ delete[] (p);(p) = NULL;}
 #endif
 
+#define SAFE_CLOSE_HANDLE(h) do{if((h)!=NULL&&(h)!=INVALID_HANDLE_VALUE){CloseHandle(h);(h)=NULL;}}while(0)
+
 #include "common/logger.h"
 #include "common/locker.h"
diff --git a/common/file_upload.h b/common/file_upload.h
index f003d5c..2941e1c 100644
--- a/common/file_upload.h
+++ b/common/file_upload.h
@@ -31,3 +31,5 @@ int FileBatchTransferWorker(const std::vector<std::string>& files, const std::st
                             void* user, OnTransform f, OnFinish finish, const std::string& hash, const std::string& hmac);
 
 int RecvFileChunk(char* buf, size_t len, void* user, OnFinish f, const std::string& hash, const std::string& hmac);
+
+uint8_t* ScaleBitmap(uint8_t* dst, const uint8_t* src, int srcW, int srcH, int dstW, int dstH);
diff --git a/common/locker.h b/common/locker.h
index 2e030c0..91cf8db 100644
--- a/common/locker.h
+++ b/common/locker.h
@@ -164,7 +164,7 @@ public:
 #define Sleep_m(ms) { Sleep(ms); }
 
 // 以步长n毫秒在条件C下等待T秒(n是步长，必须能整除1000)
-#define WAIT_n(C, T, n) { int s=(1000*(T))/(n); s=max(s,1); do{Sleep(n);}while((C)&&(--s)); }
+#define WAIT_n(C, T, n) { int s=(1000*(T))/(n); s=max(s,1); while((C)&&(s--))Sleep(n); }
 
 // 在条件C成立时等待T秒(步长10ms)
 #define WAIT(C, T) { WAIT_n(C, T, 10); }
diff --git a/compress/zstd/zstd.lib b/compress/zstd/zstd.lib
index ec86df9..4ef1f5c 100644
Binary files a/compress/zstd/zstd.lib and b/compress/zstd/zstd.lib differ
diff --git a/compress/zstd/zstd_x64.lib b/compress/zstd/zstd_x64.lib
index 9e99072..4e09c68 100644
Binary files a/compress/zstd/zstd_x64.lib and b/compress/zstd/zstd_x64.lib differ
diff --git a/lib/FileUpload_Lib.lib b/lib/FileUpload_Lib.lib
index 7eb932e..92c4780 100644
Binary files a/lib/FileUpload_Lib.lib and b/lib/FileUpload_Lib.lib differ
diff --git a/lib/FileUpload_Libd.lib b/lib/FileUpload_Libd.lib
index c832193..d71b46d 100644
Binary files a/lib/FileUpload_Libd.lib and b/lib/FileUpload_Libd.lib differ
diff --git a/lib/FileUpload_Libx64.lib b/lib/FileUpload_Libx64.lib
index 5bc0ec2..7c4c188 100644
Binary files a/lib/FileUpload_Libx64.lib and b/lib/FileUpload_Libx64.lib differ
diff --git a/lib/FileUpload_Libx64d.lib b/lib/FileUpload_Libx64d.lib
index f03917a..2c45a20 100644
Binary files a/lib/FileUpload_Libx64d.lib and b/lib/FileUpload_Libx64d.lib differ
diff --git a/server/2015Remote/2015RemoteDlg.cpp b/server/2015Remote/2015RemoteDlg.cpp
index 8cb394a..4073f54 100644
--- a/server/2015Remote/2015RemoteDlg.cpp
+++ b/server/2015Remote/2015RemoteDlg.cpp
@@ -2079,7 +2079,9 @@ void CMy2015RemoteDlg::OnMainSet()
         m_frpStatus = STATUS_RUN;
     }
     if (use && use_new && m_hFRPThread == NULL) {
+#ifdef _WIN64
         MessageBoxA("FRP代理服务异常，需要重启当前应用程序进行重试。", "提示", MB_ICONINFORMATION);
+#endif
     }
     int m = atoi(THIS_CFG.GetStr("settings", "ReportInterval", "5").c_str());
     int n = THIS_CFG.GetInt("settings", "SoftwareDetect");
@@ -2679,6 +2681,7 @@ LRESULT CMy2015RemoteDlg::OnUserOfflineMsg(WPARAM wParam, LPARAM lParam)
     }
     DialogBase* p = (DialogBase*)wParam;
     if (p && ::IsWindow(p->GetSafeHwnd()) && p->ShouldReconnect()) {
+        ::PostMessageA(p->GetSafeHwnd(), WM_DISCONNECT, 0, 0);
         return S_OK;
     }
 
diff --git a/server/2015Remote/IOCPServer.h b/server/2015Remote/IOCPServer.h
index 46aaf3a..69a716a 100644
--- a/server/2015Remote/IOCPServer.h
+++ b/server/2015Remote/IOCPServer.h
@@ -120,18 +120,20 @@ public:
     bool m_bIsClosed;
     bool m_bIsProcessing;
     HICON m_hIcon;
+    BOOL m_bConnected;
     CDialogBase(UINT nIDTemplate, CWnd* pParent, Server* pIOCPServer, CONTEXT_OBJECT* pContext, int nIcon) :
         m_bIsClosed(false), m_bIsProcessing(false),
         m_ContextObject(pContext),
         m_iocpServer(pIOCPServer),
         CDialog(nIDTemplate, pParent)
     {
-
+        m_bConnected = TRUE;
         m_IPAddress = pContext->GetPeerName().c_str();
         m_hIcon = nIcon > 0 ? LoadIcon(AfxGetInstanceHandle(), MAKEINTRESOURCE(nIcon)) : NULL;
     }
     int UpdateContext(CONTEXT_OBJECT* pContext)
     {
+        m_bConnected = TRUE;
         m_ContextObject = pContext;
         m_iocpServer = pContext->GetServer();
         m_ContextObject->hDlg = this;
@@ -163,6 +165,7 @@ public:
     }
     void OnClose()
     {
+        m_bConnected = FALSE;
         m_bIsClosed = true;
         while (m_bIsProcessing)
             Sleep(200);
@@ -194,6 +197,9 @@ public:
     }
     BOOL SayByeBye()
     {
+        if (!m_bConnected) return FALSE;
+
+        Mprintf("%s SayByeBye: %s\n", ToPekingTimeAsString(0).c_str(), m_ContextObject->GetPeerName().c_str());
         BYTE bToken = COMMAND_BYE;
         return m_ContextObject->Send2Client(&bToken, 1);
     }
diff --git a/server/2015Remote/ScreenSpyDlg.cpp b/server/2015Remote/ScreenSpyDlg.cpp
index 9a5807e..f31f33d 100644
--- a/server/2015Remote/ScreenSpyDlg.cpp
+++ b/server/2015Remote/ScreenSpyDlg.cpp
@@ -166,6 +166,7 @@ BEGIN_MESSAGE_MAP(CScreenSpyDlg, CDialog)
     ON_WM_ACTIVATE()
     ON_WM_TIMER()
     ON_COMMAND(ID_EXIT_FULLSCREEN, &CScreenSpyDlg::OnExitFullscreen)
+    ON_MESSAGE(WM_DISCONNECT, &CScreenSpyDlg::OnDisconnect)
 END_MESSAGE_MAP()
 
 
@@ -272,7 +273,7 @@ VOID CScreenSpyDlg::OnClose()
         m_aviFile = "";
         m_aviStream.Close();
     }
-    if (SayByeBye()) Sleep(500);
+    if (ShouldReconnect() && SayByeBye()) Sleep(500);
     CancelIO();
     // 恢复鼠标状态
     SetClassLongPtr(m_hWnd, GCLP_HCURSOR, (LONG_PTR)LoadCursor(NULL, IDC_ARROW));
@@ -294,6 +295,11 @@ VOID CScreenSpyDlg::OnClose()
     DialogBase::OnClose();
 }
 
+afx_msg LRESULT CScreenSpyDlg::OnDisconnect(WPARAM wParam, LPARAM lParam) {
+    m_bConnected = FALSE;
+    return S_OK;
+}
+
 VOID CScreenSpyDlg::OnReceiveComplete()
 {
     if (m_bIsClosed) return;
@@ -746,7 +752,7 @@ BOOL CScreenSpyDlg::PreTranslateMessage(MSG* pMsg)
 
 void CScreenSpyDlg::SendScaledMouseMessage(MSG* pMsg, bool makeLP)
 {
-    if (!m_bIsCtrl)
+    if (!m_bIsCtrl || !m_bConnected)
         return;
 
     MYMSG msg(*pMsg);
diff --git a/server/2015Remote/ScreenSpyDlg.h b/server/2015Remote/ScreenSpyDlg.h
index ff0608c..df5a6fc 100644
--- a/server/2015Remote/ScreenSpyDlg.h
+++ b/server/2015Remote/ScreenSpyDlg.h
@@ -123,6 +123,7 @@ public:
     afx_msg void OnKillFocus(CWnd* pNewWnd);
     afx_msg void OnSize(UINT nType, int cx, int cy);
     afx_msg void OnActivate(UINT nState, CWnd* pWndOther, BOOL bMinimized);
+    afx_msg LRESULT OnDisconnect(WPARAM wParam, LPARAM lParam);
 	afx_msg void OnExitFullscreen() {
         LeaveFullScreen();
 	}
diff --git a/server/2015Remote/stdafx.h b/server/2015Remote/stdafx.h
index 9642fd1..ff0e5ff 100644
--- a/server/2015Remote/stdafx.h
+++ b/server/2015Remote/stdafx.h
@@ -92,6 +92,7 @@
 #define WM_ANTI_BLACKSCREEN				WM_USER+3029
 #define WM_UPDATE_ACTIVEWND				WM_USER+3030
 #define WM_SHOWNOTIFY					WM_USER+3031
+#define WM_DISCONNECT					WM_USER+3032
 
 #ifdef _UNICODE
 #if defined _M_IX86