diff --git a/.github/workflows/build_as_cxx.yml b/.github/workflows/build_as_cxx.yml
new file mode 100644
index 000000000..393828f1f
--- /dev/null
+++ b/.github/workflows/build_as_cxx.yml
@@ -0,0 +1,33 @@
+name: build as C++ for S2E
+
+on:
+  pull_request:
+    paths:
+      - 'c2a_core_main.c'
+      - 'c2a_core_main.h'
+      - 'Applications/**'
+      - 'CmdTlm/**'
+      - 'Drivers/**'
+      - 'IfWrapper/**'
+      - 'System/**'
+      - 'Examples/minimum_user_for_s2e/CMakeLists.txt'
+      - 'Examples/minimum_user_for_s2e/src/**'
+
+jobs:
+  build_minimum_user:
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: clone core to src/src_core
+        run: git clone . ./Examples/minimum_user_for_s2e/src/src_core
+
+      - name: cmake
+        working-directory: ./Examples/minimum_user_for_s2e
+        run: |
+          mkdir build
+          cd build
+          cmake .. -A Win32
+
+      - name: build
+        working-directory: ./Examples/minimum_user_for_s2e/build
+        run: cmake --build .
diff --git a/.gitignore b/.gitignore
index 70ba07862..3612f13a1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -59,3 +59,4 @@ dkms.conf
 
 # for c2a user sample
 Examples/minimum_user_for_s2e/src/src_core
+Examples/minimum_user_for_s2e/build
diff --git a/Examples/minimum_user_for_s2e/CMakeLists.txt b/Examples/minimum_user_for_s2e/CMakeLists.txt
index 0199e8fdf..c601fde60 100644
--- a/Examples/minimum_user_for_s2e/CMakeLists.txt
+++ b/Examples/minimum_user_for_s2e/CMakeLists.txt
@@ -2,6 +2,10 @@
 
 cmake_minimum_required(VERSION 3.10)
 project(C2A)
+
+include_directories(src)
+add_definitions(-DSILS_FW)
+
 set(C2A_SOURCE_FILES
   # src/src_core/c2a_core_main.c
   src/src_core/Applications/anomaly_handler.c
diff --git a/Examples/minimum_user_for_s2e/CMakeSettings.json b/Examples/minimum_user_for_s2e/CMakeSettings.json
new file mode 100644
index 000000000..18553a424
--- /dev/null
+++ b/Examples/minimum_user_for_s2e/CMakeSettings.json
@@ -0,0 +1,16 @@
+{
+  "configurations": [
+    {
+      "name": "Win32",
+      "generator": "Visual Studio 16 2019",
+      "configurationType": "Debug",
+      "inheritEnvironments": [
+        "msvc_x86"
+      ],
+      "installRoot": "${env.USERPROFILE}\\CMakeBuilds\\${workspaceHash}\\install\\${name}",
+      "cmakeCommandArgs": "",
+      "buildCommandArgs": "",
+      "ctestCommandArgs": ""
+    }
+  ]
+}