diff --git a/appveyor.yml b/appveyor.yml
index f85ee230..e4adee7a 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,100 +1,100 @@
-version: 1.3.{build}
- 
-environment:
-  matrix:
-    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2013
-      PAHO_WINDOWS_BUILD_BIT: x64
-      OPENSSL_ROOT_DIR: "C:/OpenSSL-v111-Win64"
-      PAHO_BUILD_STATIC: FALSE
-      PAHO_BUILD_SHARED: TRUE
-      PAHO_HIGH_PERFORMANCE: FALSE
-      PYTHON_VERSION: Python36
-    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
-      PAHO_WINDOWS_BUILD_BIT: x64
-      OPENSSL_ROOT_DIR: "C:/OpenSSL-Win64"
-      PAHO_BUILD_STATIC: TRUE
-      PAHO_BUILD_SHARED: FALSE
-      PAHO_HIGH_PERFORMANCE: TRUE
-      PYTHON_VERSION: Python36
-    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
-      PAHO_WINDOWS_BUILD_BIT: x86
-      OPENSSL_ROOT_DIR: "C:/OpenSSL-Win32"
-      PAHO_BUILD_STATIC: FALSE
-      PAHO_BUILD_SHARED: TRUE
-      PAHO_HIGH_PERFORMANCE: TRUE
-      PYTHON_VERSION: Python313
-
-configuration: Debug
-install:
-  - cmd: ver
-  - cmd: openssl version
-  - cmd: C:\%PYTHON_VERSION%\python --version
-  - cmd: netsh advfirewall firewall add rule name="Python 3" dir=in action=allow program="C:\%PYTHON_VERSION%\python.exe" enable=yes
-  - cmd: netsh advfirewall firewall add rule name="Open Port 1883" dir=in action=allow protocol=TCP localport=1883
-  - cmd: netsh advfirewall set allprofiles state off
-  - ps: Start-Process C:\$Env:PYTHON_VERSION\python -ArgumentList 'test\mqttsas.py'
-  - cmd: git clone https://github.com/eclipse/paho.mqtt.testing.git
-  - cmd: cd paho.mqtt.testing\interoperability
-  - ps: Start-Process C:\$Env:PYTHON_VERSION\python -ArgumentList 'startbroker.py -c localhost_testing.conf'
-  - cmd: cd ..\..
-
-build_script:
-- cmd: >-
-    mkdir build.paho
-
-    cd build.paho
-
-    echo %APPVEYOR_BUILD_WORKER_IMAGE%
-
-    if "%APPVEYOR_BUILD_WORKER_IMAGE%" == "Visual Studio 2019" call "C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Auxiliary\Build\vcvarsall.bat" %PAHO_WINDOWS_BUILD_BIT%
-
-    if "%APPVEYOR_BUILD_WORKER_IMAGE%" == "Visual Studio 2015" call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" %PAHO_WINDOWS_BUILD_BIT%
-
-    if "%APPVEYOR_BUILD_WORKER_IMAGE%" == "Visual Studio 2013" call "C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\vcvarsall.bat" %PAHO_WINDOWS_BUILD_BIT%
-
-    cmake -G "NMake Makefiles" -DPAHO_WITH_SSL=TRUE -DOPENSSL_ROOT_DIR=%OPENSSL_ROOT_DIR% -DPAHO_BUILD_DOCUMENTATION=FALSE -DPAHO_BUILD_SAMPLES=TRUE -DCMAKE_BUILD_TYPE=Release -DCMAKE_VERBOSE_MAKEFILE=TRUE -DPAHO_BUILD_STATIC=%PAHO_BUILD_STATIC% -DPAHO_BUILD_SHARED=%PAHO_BUILD_SHARED% -DPAHO_HIGH_PERFORMANCE=%PAHO_HIGH_PERFORMANCE% ..
-
-    nmake
-
-    ctest -T test -VV 
-
-    cd ..
-
-after_build:
-- cmd: >-
-    set ZIPNAME=eclipse-paho-mqtt-c-windows.zip 
-
-    7z a %ZIPNAME% %APPVEYOR_BUILD_FOLDER%\*.html
-
-    7z a %ZIPNAME% %APPVEYOR_BUILD_FOLDER%\*.md
-
-    7z a %ZIPNAME% %APPVEYOR_BUILD_FOLDER%\*-v10
-
-    7z a %ZIPNAME% build.paho\src\*.dll
-
-    7z a %ZIPNAME% build.paho\src\*.lib
-
-    7z rn %ZIPNAME% build.paho\src lib
-
-    7z a %ZIPNAME% build.paho\src\samples\*.exe
-
-    7z rn %ZIPNAME% build.paho\src\samples bin
-
-    if "%PAHO_BUILD_SHARED%" == "TRUE" 7z a %ZIPNAME% "%APPVEYOR_BUILD_FOLDER%\build.paho\src\MQTTVersion.exe"
-
-    7z rn %ZIPNAME% MQTTVersion.exe bin\MQTTVersion.exe
-
-    7z a %ZIPNAME% src\MQTTClient.h src\MQTTAsync.h src\MQTTClientPersistence.h src\MQTTProperties.h src\MQTTReasonCodes.h src\MQTTSubscribeOpts.h src\MQTTExportDeclarations.h
-
-    7z rn %ZIPNAME% src include
-
-    7z a %ZIPNAME% src\samples\*.c
-
-    7z rn %ZIPNAME% src\samples samples
-
-artifacts:
-- path: eclipse-paho-mqtt-c-windows.zip
-  name: paho-mqtt-c
-
-test:
-  assemblies: build/Testing/*/Test.xml
+version: 1.3.{build}
+ 
+environment:
+  matrix:
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2013
+      PAHO_WINDOWS_BUILD_BIT: x64
+      OPENSSL_ROOT_DIR: "C:/OpenSSL-v111-Win64"
+      PAHO_BUILD_STATIC: FALSE
+      PAHO_BUILD_SHARED: TRUE
+      PAHO_HIGH_PERFORMANCE: FALSE
+      PYTHON_VERSION: Python36
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2015
+      PAHO_WINDOWS_BUILD_BIT: x64
+      OPENSSL_ROOT_DIR: "C:/OpenSSL-Win64"
+      PAHO_BUILD_STATIC: TRUE
+      PAHO_BUILD_SHARED: FALSE
+      PAHO_HIGH_PERFORMANCE: TRUE
+      PYTHON_VERSION: Python36
+    - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2019
+      PAHO_WINDOWS_BUILD_BIT: x86
+      OPENSSL_ROOT_DIR: "C:/OpenSSL-Win32"
+      PAHO_BUILD_STATIC: FALSE
+      PAHO_BUILD_SHARED: TRUE
+      PAHO_HIGH_PERFORMANCE: TRUE
+      PYTHON_VERSION: Python313
+
+configuration: Debug
+install:
+  - cmd: ver
+  - cmd: openssl version
+  - cmd: C:\%PYTHON_VERSION%\python --version
+  - cmd: netsh advfirewall firewall add rule name="Python 3" dir=in action=allow program="C:\%PYTHON_VERSION%\python.exe" enable=yes
+  - cmd: netsh advfirewall firewall add rule name="Open Port 1883" dir=in action=allow protocol=TCP localport=1883
+  - cmd: netsh advfirewall set allprofiles state off
+  - ps: Start-Process C:\$Env:PYTHON_VERSION\python -ArgumentList 'test\mqttsas.py'
+  - cmd: git clone https://github.com/eclipse/paho.mqtt.testing.git
+  - cmd: cd paho.mqtt.testing\interoperability
+  - ps: Start-Process C:\$Env:PYTHON_VERSION\python -ArgumentList 'startbroker.py -c localhost_testing.conf'
+  - cmd: cd ..\..
+
+build_script:
+- cmd: >-
+    mkdir build.paho
+
+    cd build.paho
+
+    echo %APPVEYOR_BUILD_WORKER_IMAGE%
+
+    if "%APPVEYOR_BUILD_WORKER_IMAGE%" == "Visual Studio 2019" call "C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\VC\Auxiliary\Build\vcvarsall.bat" %PAHO_WINDOWS_BUILD_BIT%
+
+    if "%APPVEYOR_BUILD_WORKER_IMAGE%" == "Visual Studio 2015" call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" %PAHO_WINDOWS_BUILD_BIT%
+
+    if "%APPVEYOR_BUILD_WORKER_IMAGE%" == "Visual Studio 2013" call "C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\vcvarsall.bat" %PAHO_WINDOWS_BUILD_BIT%
+
+    cmake -G "NMake Makefiles" -DPAHO_WITH_SSL=TRUE -DOPENSSL_ROOT_DIR=%OPENSSL_ROOT_DIR% -DPAHO_BUILD_DOCUMENTATION=FALSE -DPAHO_BUILD_SAMPLES=TRUE -DCMAKE_BUILD_TYPE=Release -DCMAKE_VERBOSE_MAKEFILE=TRUE -DPAHO_BUILD_STATIC=%PAHO_BUILD_STATIC% -DPAHO_BUILD_SHARED=%PAHO_BUILD_SHARED% -DPAHO_HIGH_PERFORMANCE=%PAHO_HIGH_PERFORMANCE% ..
+
+    nmake
+
+    ctest -T test -VV 
+
+    cd ..
+
+after_build:
+- cmd: >-
+    set ZIPNAME=eclipse-paho-mqtt-c-windows.zip 
+
+    7z a %ZIPNAME% %APPVEYOR_BUILD_FOLDER%\*.html
+
+    7z a %ZIPNAME% %APPVEYOR_BUILD_FOLDER%\*.md
+
+    7z a %ZIPNAME% %APPVEYOR_BUILD_FOLDER%\*-v10
+
+    7z a %ZIPNAME% build.paho\src\*.dll
+
+    7z a %ZIPNAME% build.paho\src\*.lib
+
+    7z rn %ZIPNAME% build.paho\src lib
+
+    7z a %ZIPNAME% build.paho\src\samples\*.exe
+
+    7z rn %ZIPNAME% build.paho\src\samples bin
+
+    if "%PAHO_BUILD_SHARED%" == "TRUE" 7z a %ZIPNAME% "%APPVEYOR_BUILD_FOLDER%\build.paho\src\MQTTVersion.exe"
+
+    7z rn %ZIPNAME% MQTTVersion.exe bin\MQTTVersion.exe
+
+    7z a %ZIPNAME% src\MQTTClient.h src\MQTTAsync.h src\MQTTClientPersistence.h src\MQTTProperties.h src\MQTTReasonCodes.h src\MQTTSubscribeOpts.h src\MQTTExportDeclarations.h
+
+    7z rn %ZIPNAME% src include
+
+    7z a %ZIPNAME% src\samples\*.c
+
+    7z rn %ZIPNAME% src\samples samples
+
+artifacts:
+- path: eclipse-paho-mqtt-c-windows.zip
+  name: paho-mqtt-c
+
+test:
+  assemblies: build/Testing/*/Test.xml