diff --git a/.ci/azure-pipelines/linux.yml b/.ci/azure-pipelines/linux.yml
index f9b37ba6..d8f1512c 100644
--- a/.ci/azure-pipelines/linux.yml
+++ b/.ci/azure-pipelines/linux.yml
@@ -4,12 +4,11 @@ jobs:
   pool:
     vmImage: ubuntu-16.04
   steps:
-  - script: |
-      cd $BUILD_BINARIESDIRECTORY
-      sudo apt -y install cmake gcc g++ ninja-build libncurses5-dev libreadline-dev libssl-dev make zlib1g-dev
-      cmake -G "Ninja" -DCMAKE_BUILD_TYPE=RelWithDebInfo $BUILD_SOURCESDIRECTORY
-      cmake --build .
-      cpack -C Release -G DEB
+  - script: sudo apt-get -y install cmake gcc g++ ninja-build libncurses5-dev libreadline-dev libssl-dev make zlib1g-dev
+    displayName: 'Prepare environment'
+  - script: "$(Build.SourcesDirectory)/.ci/azure-pipelines/linux_build.sh"
+    env:
+      SE_BUILD_NUMBER_TOKEN: $(BUILD_NUMBER_TOKEN)
     displayName: 'Build'
   - script: |
       .ci/appveyor-deb-install-test.sh
diff --git a/.ci/azure-pipelines/linux_build.sh b/.ci/azure-pipelines/linux_build.sh
new file mode 100755
index 00000000..87537491
--- /dev/null
+++ b/.ci/azure-pipelines/linux_build.sh
@@ -0,0 +1,15 @@
+#!/bin/bash
+
+if [[ "${#SE_BUILD_NUMBER_TOKEN}" -eq 64 ]]; then
+	VERSION=$(python3 "version.py")
+	BUILD_NUMBER=$(curl "https://softether.network/get-build-number?commit=${BUILD_SOURCEVERSION}&version=${VERSION}&token=${SE_BUILD_NUMBER_TOKEN}")
+else
+	BUILD_NUMBER=0
+fi
+
+cd ${BUILD_BINARIESDIRECTORY}
+
+cmake -G "Ninja" -DCMAKE_BUILD_TYPE=RelWithDebInfo -DBUILD_NUMBER=${BUILD_NUMBER} ${BUILD_SOURCESDIRECTORY}
+cmake --build .
+
+cpack -C Release -G DEB 
diff --git a/.ci/azure-pipelines/macos.yml b/.ci/azure-pipelines/macos.yml
index ead77931..acbd76e1 100644
--- a/.ci/azure-pipelines/macos.yml
+++ b/.ci/azure-pipelines/macos.yml
@@ -1,13 +1,11 @@
 jobs:
 - job: macOS
-  displayName: 'macOS'
   pool:
     vmImage: macOS-latest
   steps:
   - script: brew install cmake ninja ncurses readline openssl zlib
-    displayName: 'Install packages'
-  - script: |
-      cd $BUILD_BINARIESDIRECTORY
-      cmake -G "Ninja" -DCMAKE_BUILD_TYPE=RelWithDebInfo -DOPENSSL_ROOT_DIR=/usr/local/opt/openssl $BUILD_SOURCESDIRECTORY
-      cmake --build .
+    displayName: 'Prepare environment'
+  - script: '$(Build.SourcesDirectory)/.ci/azure-pipelines/macos_build.sh'
+    env:
+      SE_BUILD_NUMBER_TOKEN: $(BUILD_NUMBER_TOKEN)
     displayName: 'Build'
diff --git a/.ci/azure-pipelines/macos_build.sh b/.ci/azure-pipelines/macos_build.sh
new file mode 100755
index 00000000..5befaebc
--- /dev/null
+++ b/.ci/azure-pipelines/macos_build.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+
+if [[ "${#SE_BUILD_NUMBER_TOKEN}" -eq 64 ]]; then
+	VERSION=$(python "version.py")
+	BUILD_NUMBER=$(curl "https://softether.network/get-build-number?commit=${BUILD_SOURCEVERSION}&version=${VERSION}&token=${SE_BUILD_NUMBER_TOKEN}")
+else
+	BUILD_NUMBER=0
+fi
+
+cd ${BUILD_BINARIESDIRECTORY}
+
+cmake -G "Ninja" -DCMAKE_BUILD_TYPE=RelWithDebInfo -DBUILD_NUMBER=${BUILD_NUMBER} -DOPENSSL_ROOT_DIR="/usr/local/opt/openssl" ${BUILD_SOURCESDIRECTORY}
+cmake --build .
diff --git a/.ci/azure-pipelines/windows-steps.yml b/.ci/azure-pipelines/windows-steps.yml
index 30521896..9d053434 100644
--- a/.ci/azure-pipelines/windows-steps.yml
+++ b/.ci/azure-pipelines/windows-steps.yml
@@ -18,18 +18,14 @@ steps:
     vcpkg install openssl zlib --triplet ${{parameters.vcpkgTriplet}}
   workingDirectory: C:/vcpkg
   displayName: 'Prepare environment'
-- script: |
-    call "${{parameters.vcvarsPath}}"
-    cmake -G "Ninja" -DCMAKE_TOOLCHAIN_FILE=C:/vcpkg/scripts/buildsystems/vcpkg.cmake -DVCPKG_TARGET_TRIPLET=${{parameters.vcpkgTriplet}} -DCMAKE_BUILD_TYPE=RelWithDebInfo -DCMAKE_C_COMPILER="${{parameters.compilerPath}}" -DCMAKE_CXX_COMPILER="${{parameters.compilerPath}}" $(Build.SourcesDirectory)
-    cmake --build .
-  workingDirectory: $(Build.BinariesDirectory)
+- script: '$(Build.SourcesDirectory)/.ci/azure-pipelines/windows_build.bat'
+  env:
+    ARCHITECTURE: ${{parameters.architecture}}
+    COMPILER_PATH: ${{parameters.compilerPath}}
+    VCPKG_TRIPLET: ${{parameters.vcpkgTriplet}}
+    VCVARS_PATH: ${{parameters.vcvarsPath}}
+    SE_BUILD_NUMBER_TOKEN: $(BUILD_NUMBER_TOKEN)
   displayName: 'Build'
-- script: |
-    mkdir "$(Build.StagingDirectory)/installers"
-    vpnsetup /SFXMODE:vpnclient /SFXOUT:"$(Build.StagingDirectory)/installers/softether-vpnclient-$(Build.SourceVersion)-${{parameters.architecture}}.exe"
-    vpnsetup /SFXMODE:vpnserver_vpnbridge /SFXOUT:"$(Build.StagingDirectory)/installers/softether-vpnserver_vpnbridge-$(Build.SourceVersion)-${{parameters.architecture}}.exe"
-  workingDirectory: $(Build.BinariesDirectory)
-  displayName: 'Build installers'
 - powershell: |
     . .ci/appveyor-vpntest.ps1
   displayName: 'Test'
diff --git a/.ci/azure-pipelines/windows_build.bat b/.ci/azure-pipelines/windows_build.bat
new file mode 100644
index 00000000..6f533c72
--- /dev/null
+++ b/.ci/azure-pipelines/windows_build.bat
@@ -0,0 +1,26 @@
+@echo on
+
+:: The method we use to store a command's output into a variable:
+:: https://stackoverflow.com/a/6362922
+for /f "tokens=* USEBACKQ" %%g in (`python "version.py"`) do (set "VERSION=%%g")
+
+:: https://stackoverflow.com/a/8566001
+echo %SE_BUILD_NUMBER_TOKEN%> "%tmp%\length.txt"
+for %%? in ("%tmp%\length.txt") do ( set /A SE_BUILD_NUMBER_TOKEN_LENGTH=%%~z? - 2 )
+
+if %SE_BUILD_NUMBER_TOKEN_LENGTH% equ 64 (
+	for /f "tokens=* USEBACKQ" %%g in (`curl "https://softether.network/get-build-number?commit=%BUILD_SOURCEVERSION%&version=%VERSION%&token=%SE_BUILD_NUMBER_TOKEN%"`) do (set "BUILD_NUMBER=%%g")
+) else (
+	set BUILD_NUMBER=0
+)
+
+cd %BUILD_BINARIESDIRECTORY%
+
+call "%VCVARS_PATH%"
+
+cmake -G "Ninja" -DCMAKE_TOOLCHAIN_FILE="C:\vcpkg\scripts\buildsystems\vcpkg.cmake" -DVCPKG_TARGET_TRIPLET=%VCPKG_TRIPLET% -DCMAKE_BUILD_TYPE=RelWithDebInfo -DCMAKE_C_COMPILER="%COMPILER_PATH%" -DCMAKE_CXX_COMPILER="%COMPILER_PATH%" -DBUILD_NUMBER=%BUILD_NUMBER% "%BUILD_SOURCESDIRECTORY%"
+cmake --build .
+
+mkdir "%BUILD_STAGINGDIRECTORY%\installers"
+vpnsetup /SFXMODE:vpnclient /SFXOUT:"%BUILD_STAGINGDIRECTORY%\installers\softether-vpnclient-%VERSION%.%BUILD_NUMBER%.%ARCHITECTURE%.exe"
+vpnsetup /SFXMODE:vpnserver_vpnbridge /SFXOUT:"%BUILD_STAGINGDIRECTORY%\installers\softether-vpnserver_vpnbridge-%VERSION%.%BUILD_NUMBER%.%ARCHITECTURE%.exe"