diff --git a/Source/Client/Application/ApplicationWindow.cpp b/Source/Client/Application/ApplicationWindow.cpp
index 9e57a9b8..866eef87 100644
--- a/Source/Client/Application/ApplicationWindow.cpp
+++ b/Source/Client/Application/ApplicationWindow.cpp
@@ -1,4 +1,26 @@
 #include "Client/Application/ApplicationWindow.h"
+#include "Client/Application/ApplicationActivation.h"
+#include "Client/Application/Launcher.h"
+#include "Client/Browser/WebBrowser.h"
+#include "Client/Input/InputCharset.h"
+#include "Client/Input/Mouse.h"
+#include "Client/Mode/CLoginMode.h"
+#include "Client/Mode/ModeMgr.h"
+#include "Client/Session.h"
+#include "Client/Timer.h"
+#include "Contents/Configuration/ServiceConfiguration.h"
+#include "Contents/Configuration/ServiceOptions.h"
+#include "Contents/Party/AdventurerAgencyMgr.h"
+#include "Contents/Skills/AutomaticSkills.h"
+#include "Contents/UserData/AccountLinkedUserDataMgr.h"
+#include "Contents/UserData/CharacterLinkedUserDataMgr.h"
+#include "Render/DeviceContext/DCSurface.h"
+#include "UI/Edit/UIEditBoxEx.h"
+#include "UI/Window/UIWindowMgr.h"
+
+#include <cstring>
+#include <shellapi.h>
+#include <string>
 
 // GLOBAL: gl_24399
 HWND hWnd;
@@ -25,3 +47,237 @@ BOOL ClipApplicationCursor(HWND window) {
   RECT clip{first.x, first.y, last.x, last.y};
   return ClipCursor(&clip);
 }
+
+// OFFSET: 0x00E5C430
+// FUNCTION: fn_24372
+LRESULT CALLBACK sub_E5C430(HWND window, UINT message, WPARAM wParam, LPARAM lParam) {
+  std::uint8_t handled = 0;
+  const LRESULT result = g_serverLanguage->Message(window, message, wParam, lParam, handled);
+  if (handled) {
+    if (g_serverLanguage->candidateCount == 0) {
+      g_windowMgr.CloseWindow(0x33);
+    } else {
+      std::string candidates[9];
+      int info[4];
+      info[0] = g_serverLanguage->selection % 9;
+      const int first = g_serverLanguage->selection - info[0];
+      int last = first + 9;
+      if (g_serverLanguage->candidateCount < last) {
+        last = g_serverLanguage->candidateCount;
+      }
+      info[1] = (g_serverLanguage->selection + 8) / 9;
+      info[2] = (g_serverLanguage->candidateCount + 8) / 9;
+      const int count = last - first;
+      info[3] = count;
+      for (int i = 0; i < count; ++i) {
+        candidates[i] = g_serverLanguage->Candidate(first + i);
+      }
+      g_windowMgr.sub_A978D0(0x33)->SendMsg(nullptr, 0x41, reinterpret_cast<std::intptr_t>(candidates), reinterpret_cast<std::intptr_t>(info), 0, 0);
+    }
+
+    if (g_serverLanguage->DisplayLength()) {
+      g_windowMgr.sub_A978D0(0x55)->Invalidate();
+    } else {
+      g_windowMgr.CloseWindow(0x55);
+    }
+
+    if (message == WM_IME_COMPOSITION) {
+      if (CUIEditCtrlEx* edit = dynamic_cast<CUIEditCtrlEx*>(g_windowMgr.GetHoverWindow())) {
+        edit->SendMsg(nullptr, WM_IME_COMPOSITION, wParam, lParam, 0, 0);
+      }
+    }
+    return result;
+  }
+
+  switch (message) {
+  case WM_CREATE:
+    return 0;
+  case WM_DESTROY:
+    if (std::strlen(g_homepageUrl) != 0) {
+      ShellExecuteA(hWnd, "open", g_homepageUrl, nullptr, nullptr, SW_SHOWNORMAL);
+    }
+    return 0;
+  case WM_MOVE:
+    if (g_isAppActive != 1 && !GetRenderSystemHolder()->IsWindowed()) {
+      GetRenderSystemHolder()->Present(true);
+    }
+    return 0;
+  case WM_ACTIVATE: {
+    const short state = static_cast<short>(wParam);
+    if (state == WA_INACTIVE) {
+      if (g_mouse.active) {
+        g_mouse.Reset();
+        g_mouse.active = 0;
+      }
+    } else if ((state == WA_ACTIVE || state == WA_CLICKACTIVE) && g_mouse.active != 1) {
+      g_mouse.Reset();
+      g_mouse.active = 1;
+    }
+
+    if (!GetRenderSystemHolder()->IsWindowed()) {
+      if (g_isAppActive == 1) {
+        g_restoreSurfaces = 1;
+      }
+      return 1;
+    }
+    if (g_isAppActive != 1) {
+      CWebBrowser* browser = g_windowMgr.FindBrowser(reinterpret_cast<HWND>(lParam));
+      if (browser && browser->MatchesWindow(reinterpret_cast<HWND>(lParam))) {
+        SetApplicationActive(1);
+      } else {
+        ShowWindow(window, SW_MINIMIZE);
+      }
+      return 1;
+    }
+    g_restoreSurfaces = 1;
+    ShowWindow(window, SW_MAXIMIZE);
+    return 1;
+  }
+  case WM_ERASEBKGND:
+    return 1;
+  case WM_PAINT:
+    ValidateRect(window, nullptr);
+    return 0;
+  case WM_CLOSE:
+    g_modalImmediate = 1;
+    g_accountLinkedUserDataMgr->Save();
+    if (g_modeMgr.GetGameMode()) {
+      g_characterLinkedUserDataMgr->Save();
+    }
+    if (g_modeMgr.GetGameMode()) {
+      g_adventurerAgencyMgr->RequestStop();
+    }
+    if (g_serviceType == 11) {
+      ShellExecuteA(hWnd, "open", "http://www.ragnarok.co.in/index.php", nullptr, nullptr, SW_SHOWNORMAL);
+    }
+    return 0;
+  case WM_SETCURSOR:
+    if (!GetRenderSystemHolder()->IsWindowed()) {
+      if (!g_serviceOptions.Get(ServiceOption::ConfineCursor) && static_cast<short>(lParam) != HTCLIENT) {
+        SetCursor(LoadCursorA(nullptr, IDC_ARROW));
+        g_mouse.SetX(-100);
+        g_mouse.SetY(-100);
+      } else {
+        SetCursor(nullptr);
+      }
+    }
+    return 0;
+  case WM_GETMINMAXINFO:
+    if (hWnd) {
+      MINMAXINFO* info = reinterpret_cast<MINMAXINFO*>(lParam);
+      info->ptMinTrackSize.x = Rect.right - Rect.left;
+      info->ptMaxTrackSize.x = Rect.right - Rect.left;
+      info->ptMinTrackSize.y = Rect.bottom - Rect.top;
+      info->ptMaxTrackSize.y = Rect.bottom - Rect.top;
+    }
+    return 0;
+  case WM_NCACTIVATE:
+    SetApplicationActive(LOWORD(wParam));
+    if (wParam) {
+      ResetTimer();
+    }
+    break;
+  case WM_KEYDOWN:
+    if (UIWindow* target = g_windowMgr.LookupWindow(0x130)) {
+      target->SendMsg(nullptr, 0, wParam, 0, 0, 0);
+      return 0;
+    }
+    if (g_windowMgr.ProcessKeyDown(wParam, lParam, ~(static_cast<unsigned>(lParam) >> 30) & 1)) {
+      return 0;
+    }
+    if (!g_windowMgr.unknown_0025) {
+      g_windowMgr.RefreshWindow01C8Edits();
+      return 0;
+    }
+    if (g_windowMgr.IsHoverOnWindow01C8Button() && g_serviceType != 15 && g_windowMgr.ProcessDialogKey(wParam, lParam)) {
+      return 0;
+    }
+    if (!g_windowMgr.GetHoverWindow() || g_windowMgr.GetHoverWindow()->SendMsg(nullptr, WM_KEYDOWN, wParam, lParam, 0, 0) != 3) {
+      g_serverLanguage->KeyDown(wParam, lParam);
+    }
+    if (g_dialogKeyboardEnabled && !g_dialogKeyboardBlocked) {
+      g_windowMgr.RefreshWindow01C8Edits();
+    }
+    return 0;
+  case WM_KEYUP:
+    g_session.m_automaticSkills.DisableAll();
+    if (wParam == VK_SNAPSHOT) {
+      g_windowMgr.ProcessKeyDown(VK_SNAPSHOT, lParam, 1);
+    }
+    return 0;
+  case WM_CHAR:
+    if (!g_windowMgr.LookupWindow(0x130) && g_windowMgr.unknown_0025) {
+      if (g_windowMgr.GetHoverWindow() && g_windowMgr.GetHoverWindow()->SendMsg(nullptr, WM_CHAR, wParam, lParam, 0, 0) == 3) {
+        return 0;
+      }
+      g_serverLanguage->Character(wParam, lParam);
+    }
+    return 0;
+  case WM_SYSKEYDOWN:
+    if (g_windowMgr.ProcessKeyDown(wParam, lParam, ~(static_cast<unsigned>(lParam) >> 30) & 1)) {
+      return 0;
+    }
+    break;
+  case WM_SYSCOMMAND:
+    switch (wParam & 0xFFF0) {
+    case SC_MOVE:
+      if (!GetRenderSystemHolder()->IsWindowed()) {
+        GetCursorPos(&g_windowDragStart);
+        GetWindowRect(window, &g_windowDragRect);
+        g_windowDragging = true;
+        if (g_serviceOptions.Get(ServiceOption::ConfineCursor)) {
+          ClipCursor(nullptr);
+        }
+      }
+      return 0;
+    case SC_MINIMIZE:
+    case SC_MOUSEMENU:
+    case SC_RESTORE:
+    case SC_MONITORPOWER:
+      if (GetRenderSystemHolder()->IsWindowed()) {
+        return 0;
+      }
+      break;
+    case SC_CLOSE:
+      break;
+    case SC_KEYMENU:
+      if (lParam != ' ') {
+        return 0;
+      }
+      break;
+    default:
+      return 0;
+    }
+    break;
+  case WM_MOUSEMOVE:
+  case WM_LBUTTONDOWN:
+  case WM_LBUTTONUP:
+  case WM_LBUTTONDBLCLK:
+  case WM_RBUTTONDOWN:
+  case WM_RBUTTONUP:
+  case WM_RBUTTONDBLCLK:
+  case WM_MOUSEWHEEL:
+    g_mouse.Message(g_mouse, hWnd, window, message, wParam, lParam);
+    break;
+  case WM_ENTERMENULOOP:
+  case WM_ENTERSIZEMOVE:
+    g_isAppActive = 0;
+    SetPriorityClass(GetCurrentProcess(), IDLE_PRIORITY_CLASS);
+    ClipCursor(nullptr);
+    g_session.m_automaticSkills.DisableAll();
+    break;
+  case WM_EXITMENULOOP:
+  case WM_EXITSIZEMOVE:
+    if (GetActiveWindow() == window || !IsIconic(window)) {
+      SetApplicationActive(1);
+    } else {
+      SetApplicationActive(0);
+    }
+    break;
+  case WM_IME_SETCONTEXT:
+    wParam = 1;
+    lParam = 0;
+    break;
+  }
+  return DefWindowProcA(window, message, wParam, lParam);
+}
diff --git a/Source/Client/Application/Launcher.h b/Source/Client/Application/Launcher.h
index 99843464..25e94c91 100644
--- a/Source/Client/Application/Launcher.h
+++ b/Source/Client/Application/Launcher.h
@@ -23,6 +23,7 @@ extern bool g_launchPassCommandLine;
 extern bool g_windowDragging;
 extern RECT g_windowDragRect;
 extern POINT g_windowDragStart;
+extern RECT Rect;
 
 __declspec(noinline) HANDLE StartClientProcess(char* program);
 
diff --git a/Source/Contents/Configuration/ServiceConfiguration.h b/Source/Contents/Configuration/ServiceConfiguration.h
index f31a2e69..5a15b1f2 100644
--- a/Source/Contents/Configuration/ServiceConfiguration.h
+++ b/Source/Contents/Configuration/ServiceConfiguration.h
@@ -8,6 +8,7 @@ extern signed char g_language;
 extern bool g_serviceFlag05;
 extern bool g_serviceFlag06;
 extern int g_serviceType;
+extern char g_homepageUrl[256];
 
 int SetServiceFlags(int first, int second);
 extern int g_serviceMode;