diff --git a/CMakeLists.txt b/CMakeLists.txt
index b978c33..da89682 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -12,7 +12,18 @@ set(CMAKE_AUTORCC ON)
 include(GNUInstallDirs)
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_SOURCE_DIR}/cmake")
 
-add_executable(squawk)
+set(WIN32_FLAG "")
+set(MACOSX_BUNDLE_FLAG "")
+if (CMAKE_BUILD_TYPE STREQUAL "Release")
+  if (WIN32)
+    set(WIN32_FLAG WIN32)
+  endif(WIN32)
+  if (APPLE)
+    set(MACOSX_BUNDLE_FLAG MACOSX_BUNDLE)
+  endif(APPLE)
+endif()
+
+add_executable(squawk ${WIN32_FLAG} ${MACOSX_BUNDLE_FLAG})
 target_include_directories(squawk PRIVATE ${CMAKE_SOURCE_DIR})
 
 option(SYSTEM_QXMPP "Use system qxmpp lib" ON)
@@ -88,7 +99,12 @@ find_package(LMDB REQUIRED)
 target_link_libraries(squawk PRIVATE Qt5::Core Qt5::Widgets Qt5::DBus Qt5::Network Qt5::Gui Qt5::Xml)
 target_link_libraries(squawk PRIVATE lmdb)
 target_link_libraries(squawk PRIVATE simpleCrypt)
-target_link_libraries(squawk PRIVATE uuid)
+# Link thread libraries on Linux
+if(UNIX AND NOT APPLE)
+  set(THREADS_PREFER_PTHREAD_FLAG ON)
+  find_package(Threads REQUIRED)
+  target_link_libraries(squawk PRIVATE Threads::Threads)
+endif()
 
 # Build type
 if (NOT CMAKE_BUILD_TYPE)
@@ -97,11 +113,14 @@ endif ()
 
 message("Build type: ${CMAKE_BUILD_TYPE}")
 
+if(CMAKE_COMPILER_IS_GNUCXX)
 target_compile_options(squawk PRIVATE
   "-Wall;-Wextra"
   "$<$<CONFIG:DEBUG>:-g>"
   "$<$<CONFIG:RELEASE>:-O3>"
+  "-fno-sized-deallocation" # for eliminating _ZdlPvm
   )
+endif(CMAKE_COMPILER_IS_GNUCXX)
 
 add_subdirectory(core)
 add_subdirectory(external/simpleCrypt)
@@ -114,3 +133,12 @@ add_subdirectory(ui)
 
 # Install the executable
 install(TARGETS squawk DESTINATION ${CMAKE_INSTALL_BINDIR})
+
+if (CMAKE_BUILD_TYPE STREQUAL "Release")
+  if (APPLE)
+    add_custom_command(TARGET squawk POST_BUILD COMMENT "Running macdeployqt..."
+      COMMAND "${Qt5Widgets_DIR}/../../../bin/macdeployqt" "${CMAKE_CURRENT_BINARY_DIR}/squawk.app"
+    )
+  endif(APPLE)
+endif()
+
diff --git a/README.md b/README.md
index f2101d6..e94972f 100644
--- a/README.md
+++ b/README.md
@@ -9,12 +9,12 @@
 ### Prerequisites
 
 - QT 5.12 *(lower versions might work but it wasn't tested)*
-- uuid _(usually included in some other package, for example it's ***libutil-linux*** in archlinux)_
 - lmdb
 - CMake 3.0 or higher
 - qxmpp 1.1.0 or higher
 - KDE Frameworks: kwallet (optional)
 - KDE Frameworks: KIO (optional)
+- Boost
 
 ### Getting
 
@@ -34,6 +34,26 @@ You can also clone the repo and build it from source
 
 Squawk requires Qt with SSL enabled. It uses CMake as build system.
 
+Please check the prerequisites and install them before installation.
+
+#### For Windows (Mingw-w64) build
+
+You need Qt for mingw64 (MinGW 64-bit) platform when installing Qt.
+
+The best way to acquire library `lmdb` and `boost` is through Msys2.
+
+First install Msys2, and then install `mingw-w64-x86_64-lmdb` and `mingw-w64-x86_64-boost` by pacman.
+
+Then you need to provide the cmake cache entry when calling cmake for configuration:
+
+```
+cmake .. -D LMDB_ROOT_DIR:PATH=<Msys2 Mingw64 Root Directory> -D BOOST_ROOT:PATH=<Msys2 Mingw64 Root Directory>
+```
+
+`<Msys2 Mingw64 Root Directory>`: e.g. `C:/msys64/mingw64`.
+
+---
+
 There are two ways to build, it depends whether you have qxmpp installed in your system
 
 #### Building with system qxmpp
@@ -45,7 +65,7 @@ $ git clone https://git.macaw.me/blue/squawk
 $ cd squawk
 $ mkdir build
 $ cd build
-$ cmake ..
+$ cmake .. [-D LMDB_ROOT_DIR:PATH=...] [-D BOOST_ROOT:PATH=...]
 $ cmake --build .
 ```
 
@@ -58,10 +78,12 @@ $ git clone --recurse-submodules https://git.macaw.me/blue/squawk
 $ cd squawk
 $ mkdir build
 $ cd build
-$ cmake .. -D SYSTEM_QXMPP=False
+$ cmake .. -D SYSTEM_QXMPP=False [-D LMDB_ROOT_DIR:PATH=...] [-D BOOST_ROOT:PATH=...]
 $ cmake --build .
 ```
 
+You can always refer to `appveyor.yml` to see how AppVeyor build squawk.
+
 ### List of keys
 
 Here is the list of keys you can pass to configuration phase of `cmake ..`. 
diff --git a/appveyor.yml b/appveyor.yml
new file mode 100644
index 0000000..30a8125
--- /dev/null
+++ b/appveyor.yml
@@ -0,0 +1,117 @@
+image:
+  - Visual Studio 2019
+  - "Previous Ubuntu1804"
+  - macOS-Mojave
+
+branches:
+  except:
+    - gh-pages
+
+for:
+-
+  matrix:
+    only:
+      - image: Visual Studio 2019
+
+  environment:
+      QTDIR: C:\Qt\5.15.2\mingw81_64
+      QTTOOLDIR: C:\Qt\Tools\mingw810_64\bin
+      QTNINJADIR: C:\Qt\Tools\Ninja
+
+  install:
+      - set PATH=%QTTOOLDIR%;%QTNINJADIR%;%QTDIR%\bin;%PATH%
+      - git submodule update --init --recursive
+
+  before_build:
+      - choco install --yes zstandard
+      - choco install --yes --version=7.1.0.2 imagemagick.app
+      - set PATH=C:\Program Files\ImageMagick-7.1.0-Q16-HDRI;%PATH%
+
+      - mkdir lmdb
+      - cd lmdb
+      - curl -OL https://mirror.msys2.org/mingw/mingw64/mingw-w64-x86_64-lmdb-0.9.27-1-any.pkg.tar.zst
+      - zstd -d ./mingw-w64-x86_64-lmdb-0.9.27-1-any.pkg.tar.zst
+      - tar -xvf ./mingw-w64-x86_64-lmdb-0.9.27-1-any.pkg.tar
+      - cd ..
+
+      - mkdir boost
+      - cd boost
+      - curl -OL https://repo.msys2.org/mingw/mingw64/mingw-w64-x86_64-boost-1.77.0-2-any.pkg.tar.zst
+      - zstd -d ./mingw-w64-x86_64-boost-1.77.0-2-any.pkg.tar.zst
+      - tar -xvf ./mingw-w64-x86_64-boost-1.77.0-2-any.pkg.tar
+      - cd ..
+
+      - mkdir build
+      - cd build
+      - cmake -GNinja -DCMAKE_BUILD_TYPE:String=Release -DCMAKE_PREFIX_PATH:STRING=%QTDIR% -DLMDB_ROOT_DIR:PATH=C:/projects/squawk/lmdb/mingw64  -DBOOST_ROOT:PATH=C:/projects/squawk/boost/mingw64 ..
+
+  build_script:
+      - cmake --build .
+      - mkdir deploy
+      - cd deploy
+      - copy ..\squawk.exe .\
+      - copy ..\external\qxmpp\src\libqxmpp.dll .\
+      - windeployqt .\squawk.exe
+      - windeployqt .\libqxmpp.dll
+      - cd ..\..
+
+  artifacts:
+      - path: build/deploy/squawk.exe
+        name: Squawk executable (Qt 5.15.2)
+
+      - path: build/deploy
+        name: Squawk deployment with Qt Framework
+    
+-
+  matrix:
+    only:
+      - image: macOS-Mojave
+
+  install:
+      - brew install lmdb imagemagick boost
+      - git submodule update --init --recursive
+
+  before_build:
+      - mkdir build
+      - cd build
+      - cmake -DCMAKE_BUILD_TYPE:String=Release -DCMAKE_PREFIX_PATH:STRING=$HOME/Qt/5.15.2/clang_64 ..
+
+  build_script:
+      - cmake --build .
+
+  after_build:
+      - zip -r squawk.app.zip squawk.app
+
+  artifacts:
+      - path: build/squawk.app/Contents/MacOS/squawk
+        name: Squawk executable (Qt 5.15.2)
+      - path: build/external/qxmpp/src/
+        name: QXMPP
+      - path: build/squawk.app.zip
+        name: Squawk Bundle with Qt Framework (Qt 5.15.2)
+
+-
+  matrix:
+    only:
+      - image: "Previous Ubuntu1804"
+
+  install:
+      - ls $HOME/Qt
+      - sudo apt update
+      - sudo apt install -y liblmdb-dev liblmdb0 imagemagick mesa-common-dev libglu1-mesa-dev libboost-all-dev
+      - git submodule update --init --recursive
+
+  before_build:
+      - mkdir build
+      - cd build
+      - cmake -DCMAKE_BUILD_TYPE:String=Release -DCMAKE_PREFIX_PATH:STRING=$HOME/Qt/5.12.10/gcc_64 -DCMAKE_BUILD_RPATH="\$ORIGIN" ..
+
+  build_script:
+      - cmake --build .
+
+  after_build:
+      - zip -r squawk.zip squawk -j external/qxmpp/src/libqxmpp*
+
+  artifacts:
+      - path: build/squawk.zip
+        name: Squawk executable and libraries (Qt 5.12)
diff --git a/cmake/FindLMDB.cmake b/cmake/FindLMDB.cmake
index 79788f1..d6f2cd3 100644
--- a/cmake/FindLMDB.cmake
+++ b/cmake/FindLMDB.cmake
@@ -25,10 +25,15 @@ find_path(LMDB_ROOT_DIR
   )
 
 find_library(LMDB_LIBRARIES
-  NAMES lmdb
+  NAMES liblmdb.a liblmdb.so liblmdb.so.a liblmdb.dll.a # We want lmdb to be static, if possible
   HINTS ${LMDB_ROOT_DIR}/lib
   )
 
+add_library(lmdb UNKNOWN IMPORTED)
+set_target_properties(lmdb PROPERTIES
+    IMPORTED_LOCATION ${LMDB_LIBRARIES}
+    )
+
 find_path(LMDB_INCLUDE_DIRS
   NAMES lmdb.h
   HINTS ${LMDB_ROOT_DIR}/include
diff --git a/cmake/MacOSXBundleInfo.plist.in b/cmake/MacOSXBundleInfo.plist.in
new file mode 100644
index 0000000..ac4bbec
--- /dev/null
+++ b/cmake/MacOSXBundleInfo.plist.in
@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+
+    <key>CFBundleDevelopmentRegion</key>
+    <string>English</string>
+    <key>CFBundleExecutable</key>
+    <string>${MACOSX_BUNDLE_EXECUTABLE_NAME}</string>
+    <key>CFBundleGetInfoString</key>
+    <string>${MACOSX_BUNDLE_INFO_STRING}</string>
+    <key>CFBundleIconFile</key>
+    <string>${MACOSX_BUNDLE_ICON_FILE}</string>
+    <key>CFBundleIdentifier</key>
+    <string>${MACOSX_BUNDLE_GUI_IDENTIFIER}</string>
+    <key>CFBundleInfoDictionaryVersion</key>
+    <string>6.0</string>
+    <key>CFBundleLongVersionString</key>
+    <string>${MACOSX_BUNDLE_LONG_VERSION_STRING}</string>
+    <key>CFBundleName</key>
+    <string>${MACOSX_BUNDLE_BUNDLE_NAME}</string>
+    <key>CFBundlePackageType</key>
+    <string>APPL</string>
+    <key>CFBundleShortVersionString</key>
+    <string>${MACOSX_BUNDLE_SHORT_VERSION_STRING}</string>
+    <key>CFBundleSignature</key>
+    <string>????</string>
+    <key>CFBundleVersion</key>
+    <string>${MACOSX_BUNDLE_BUNDLE_VERSION}</string>
+    <key>CSResourcesFileMapped</key>
+    <true/>
+    <key>NSHumanReadableCopyright</key>
+    <string>${MACOSX_BUNDLE_COPYRIGHT}</string>
+
+    <key>NSPrincipalClass</key>
+    <string>NSApplication</string>
+    <key>NSHighResolutionCapable</key>
+    <string>True</string>
+
+</dict>
+</plist>
diff --git a/core/CMakeLists.txt b/core/CMakeLists.txt
index 3b160e2..9369cb7 100644
--- a/core/CMakeLists.txt
+++ b/core/CMakeLists.txt
@@ -1,3 +1,8 @@
+set(SIGNALCATCHER_SOURCE signalcatcher.cpp)
+if(WIN32)
+    set(SIGNALCATCHER_SOURCE signalcatcher_win32.cpp)
+endif(WIN32)
+
 target_sources(squawk PRIVATE
   account.cpp
   account.h
@@ -13,7 +18,7 @@ target_sources(squawk PRIVATE
   networkaccess.h
   rosteritem.cpp
   rosteritem.h
-  signalcatcher.cpp
+  ${SIGNALCATCHER_SOURCE}
   signalcatcher.h
   squawk.cpp
   squawk.h
@@ -23,5 +28,7 @@ target_sources(squawk PRIVATE
   urlstorage.h
   )
 
+target_include_directories(squawk PRIVATE ${LMDB_INCLUDE_DIRS})
+
 add_subdirectory(handlers)
 add_subdirectory(passwordStorageEngines)
diff --git a/core/signalcatcher_win32.cpp b/core/signalcatcher_win32.cpp
new file mode 100644
index 0000000..ca7b5a2
--- /dev/null
+++ b/core/signalcatcher_win32.cpp
@@ -0,0 +1,42 @@
+/*
+ * Squawk messenger.
+ * Copyright (C) 2021  Shunf4 <shun1048576@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "signalcatcher.h"
+#include <unistd.h>
+
+SignalCatcher::SignalCatcher(QCoreApplication *p_app, QObject *parent):
+    QObject(parent),
+    app(p_app)
+{
+}
+
+SignalCatcher::~SignalCatcher()
+{}
+
+void SignalCatcher::handleSigInt()
+{
+}
+
+void SignalCatcher::intSignalHandler(int unused)
+{
+}
+
+int SignalCatcher::setup_unix_signal_handlers()
+{
+    return 0;
+}
diff --git a/resources/CMakeLists.txt b/resources/CMakeLists.txt
index 86433f3..9288650 100644
--- a/resources/CMakeLists.txt
+++ b/resources/CMakeLists.txt
@@ -1,14 +1,59 @@
 target_sources(squawk PRIVATE resources.qrc)
 
 configure_file(images/logo.svg squawk.svg COPYONLY)
+configure_file(squawk.rc squawk.rc COPYONLY)
 
-execute_process(COMMAND convert -background none -size 48x48 squawk.svg squawk48.png WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
-execute_process(COMMAND convert -background none -size 64x64 squawk.svg squawk64.png WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
-execute_process(COMMAND convert -background none -size 128x128 squawk.svg squawk128.png WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
-execute_process(COMMAND convert -background none -size 256x256 squawk.svg squawk256.png WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+if(WIN32)
+    set(CONVERT_BIN magick convert)
+else(WIN32)
+    set(CONVERT_BIN convert)
+endif(WIN32)
+execute_process(COMMAND ${CONVERT_BIN} -background none -size 48x48 squawk.svg squawk48.png WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+execute_process(COMMAND ${CONVERT_BIN} -background none -size 64x64 squawk.svg squawk64.png WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+execute_process(COMMAND ${CONVERT_BIN} -background none -size 128x128 squawk.svg squawk128.png WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+execute_process(COMMAND ${CONVERT_BIN} -background none -size 256x256 squawk.svg squawk256.png WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+
+if (WIN32)
+    execute_process(COMMAND ${CONVERT_BIN} squawk48.png squawk64.png squawk256.png squawk.ico WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+    set(SQUAWK_WIN_RC "${CMAKE_CURRENT_BINARY_DIR}/squawk.rc")
+    set(SQUAWK_WIN_RC "${SQUAWK_WIN_RC}" PARENT_SCOPE)
+    target_sources(squawk PRIVATE ${SQUAWK_WIN_RC})
+endif(WIN32)
+
+if (APPLE)
+    file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/icns.iconset")
+    execute_process(COMMAND convert -background none -size 16x16 squawk.svg icns.iconset/icon_16x16.png WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+    execute_process(COMMAND convert -background none -resize !32x32 squawk.svg "icns.iconset/icon_16x16@2x.png" WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+    execute_process(COMMAND convert -background none -resize !32x32 squawk.svg "icns.iconset/icon_32x32.png" WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+    execute_process(COMMAND convert -background none -resize !64x64 squawk.svg "icns.iconset/icon_32x32@2x.png" WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+    execute_process(COMMAND convert -background none -resize !128x128 squawk.svg "icns.iconset/icon_128x128.png" WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+    execute_process(COMMAND convert -background none -resize !256x256 squawk.svg "icns.iconset/icon_128x128@2x.png" WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+    execute_process(COMMAND convert -background none -resize !256x256 squawk.svg "icns.iconset/icon_256x256.png" WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+    execute_process(COMMAND convert -background none -resize !512x512 squawk.svg "icns.iconset/icon_256x256@2x.png" WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+    execute_process(COMMAND convert -background none -resize !512x512 squawk.svg "icns.iconset/icon_512x512.png" WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+    execute_process(COMMAND convert -background none -resize !1024x1024 squawk.svg "icns.iconset/icon_512x512@2x.png" WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+    execute_process(COMMAND iconutil -c icns "icns.iconset" -o "squawk.icns" WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
+    set(MACOSX_BUNDLE_ICON_FILE squawk.icns)
+    set(MACOSX_BUNDLE_ICON_FILE ${MACOSX_BUNDLE_ICON_FILE} PARENT_SCOPE)
+    set(APP_ICON_MACOSX ${CMAKE_CURRENT_BINARY_DIR}/squawk.icns)
+    set(APP_ICON_MACOSX ${APP_ICON_MACOSX} PARENT_SCOPE)
+    target_sources(squawk PRIVATE ${APP_ICON_MACOSX})
+    set_source_files_properties(${APP_ICON_MACOSX} TARGET_DIRECTORY squawk PROPERTIES
+               MACOSX_PACKAGE_LOCATION "Resources")
+    if (CMAKE_BUILD_TYPE STREQUAL "Release")
+      if (APPLE)
+        set_target_properties(squawk PROPERTIES
+          MACOSX_BUNDLE_EXECUTABLE_NAME "Squawk"
+          MACOSX_BUNDLE_ICON_FILE "${MACOSX_BUNDLE_ICON_FILE}" # TODO
+          MACOSX_BUNDLE_BUNDLE_NAME "Squawk"
+          MACOSX_BUNDLE_INFO_PLIST ${CMAKE_SOURCE_DIR}/cmake/MacOSXBundleInfo.plist.in)
+      endif(APPLE)
+    endif()
+endif (APPLE)
 
 install(FILES ${CMAKE_CURRENT_BINARY_DIR}/squawk.svg DESTINATION ${CMAKE_INSTALL_DATADIR}/icons/hicolor/scalable/apps)
 install(FILES ${CMAKE_CURRENT_BINARY_DIR}/squawk48.png DESTINATION ${CMAKE_INSTALL_DATADIR}/icons/hicolor/48x48/apps RENAME squawk.png)
 install(FILES ${CMAKE_CURRENT_BINARY_DIR}/squawk64.png DESTINATION ${CMAKE_INSTALL_DATADIR}/icons/hicolor/64x64/apps RENAME squawk.png)
 install(FILES ${CMAKE_CURRENT_BINARY_DIR}/squawk128.png DESTINATION ${CMAKE_INSTALL_DATADIR}/icons/hicolor/128x128/apps RENAME squawk.png)
 install(FILES ${CMAKE_CURRENT_BINARY_DIR}/squawk256.png DESTINATION ${CMAKE_INSTALL_DATADIR}/icons/hicolor/256x256/apps RENAME squawk.png)
+
diff --git a/resources/squawk.rc b/resources/squawk.rc
new file mode 100644
index 0000000..6061f20
--- /dev/null
+++ b/resources/squawk.rc
@@ -0,0 +1 @@
+IDI_ICON1               ICON    "squawk.ico"
diff --git a/shared/utils.cpp b/shared/utils.cpp
index 924be85..a7a4ecb 100644
--- a/shared/utils.cpp
+++ b/shared/utils.cpp
@@ -17,15 +17,11 @@
  */
 
 #include "utils.h"
+#include <QUuid>
 
 QString Shared::generateUUID()
 {
-    uuid_t uuid;
-    uuid_generate(uuid);
-    
-    char uuid_str[36];
-    uuid_unparse_lower(uuid, uuid_str);
-    return uuid_str;
+    return QUuid::createUuid().toString();
 }
 
 
diff --git a/shared/utils.h b/shared/utils.h
index a8a17d5..6dcb141 100644
--- a/shared/utils.h
+++ b/shared/utils.h
@@ -24,9 +24,8 @@
 #include <QColor>
 #include <QRegularExpression>
 
-//#include "KIO/OpenFileManagerWindowJob"
+// #include "KIO/OpenFileManagerWindowJob"
 
-#include <uuid/uuid.h>
 #include <vector> 
 
 namespace Shared {
diff --git a/signalcatcher_win32.cpp b/signalcatcher_win32.cpp
new file mode 100644
index 0000000..ca7b5a2
--- /dev/null
+++ b/signalcatcher_win32.cpp
@@ -0,0 +1,42 @@
+/*
+ * Squawk messenger.
+ * Copyright (C) 2021  Shunf4 <shun1048576@gmail.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "signalcatcher.h"
+#include <unistd.h>
+
+SignalCatcher::SignalCatcher(QCoreApplication *p_app, QObject *parent):
+    QObject(parent),
+    app(p_app)
+{
+}
+
+SignalCatcher::~SignalCatcher()
+{}
+
+void SignalCatcher::handleSigInt()
+{
+}
+
+void SignalCatcher::intSignalHandler(int unused)
+{
+}
+
+int SignalCatcher::setup_unix_signal_handlers()
+{
+    return 0;
+}