diff --git a/.github/workflows/osrm-backend.yml b/.github/workflows/osrm-backend.yml
index 9e739ff330..d61bb99406 100644
--- a/.github/workflows/osrm-backend.yml
+++ b/.github/workflows/osrm-backend.yml
@@ -36,6 +36,7 @@ jobs:
     continue-on-error: false
     env:
       BUILD_TYPE: Release
+      CXXFLAGS: "/Zm256 /MP2"
     steps:
       - uses: actions/checkout@v6
       - run: cmake --version
@@ -70,25 +71,22 @@ jobs:
         run: |
           cmake --preset ci-windows -DENABLE_NODE_BINDINGS=ON
           cmake --build --preset ci-windows
+      - name: Run tests
+        shell: bash
+        run: |
+          cd build
+          cmake --build . --config Release --target tests
+      - name: Run node tests
+        shell: bash
+        run: |
+          ./lib/binding_napi_v8/osrm-extract.exe -p profiles/car.lua test/data/monaco.osm.pbf
+
+          mkdir -p test/data/ch
+          cp test/data/monaco.osrm* test/data/ch/
+          ./lib/binding_napi_v8/osrm-contract.exe test/data/ch/monaco.osrm
 
-      # TODO: MSVC goes out of memory when building our tests
-      # - name: Run tests
-      #   shell: bash
-      #   run: |
-      #     cd build
-      #     cmake --build . --config Release --target tests
-      #     # TODO: run tests
-      # - name: Run node tests
-      #   shell: bash
-      #   run: |
-      #     ./lib/binding_napi_v8/osrm-extract.exe -p profiles/car.lua test/data/monaco.osm.pbf
-
-      #     mkdir -p test/data/ch
-      #     cp test/data/monaco.osrm* test/data/ch/
-      #     ./lib/binding_napi_v8/osrm-contract.exe test/data/ch/monaco.osrm
-
-      #     ./lib/binding_napi_v8/osrm-datastore.exe test/data/ch/monaco.osrm
-      #     node test/nodejs/index.js
+          ./lib/binding_napi_v8/osrm-datastore.exe test/data/ch/monaco.osrm
+          node test/nodejs/index.js
       - name: Build Node package
         shell: bash
         run: ./scripts/ci/node_package.sh
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 057d5fc845..3dbf7d2ea5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -274,6 +274,7 @@ elseif(CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /bigobj") # avoid compiler error C1128 from scripting_environment_lua.cpp
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /DWIN32_LEAN_AND_MEAN") # avoid compiler error C2011 from dual #include of winsock.h and winsock2.h
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /utf-8") # support Unicode in fmt library
+  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /MP") # limit parallel compilation to reduce memory usage
   add_dependency_defines(-DBOOST_LIB_DIAGNOSTIC)
   add_dependency_defines(-D_CRT_SECURE_NO_WARNINGS)
   add_dependency_defines(-DNOMINMAX) # avoid min and max macros that can break compilation