diff --git a/SConstruct b/SConstruct
index 8778a53cc..1f32cb96f 100644
--- a/SConstruct
+++ b/SConstruct
@@ -589,7 +589,7 @@ for toolchain in all_toolchains:
 
         object_builder.add_source_files(
             'beastc.c',
-            CCFLAGS=['-Wno-array-bounds'])
+            CCFLAGS = ([] if toolchain == 'msvc' else ['-Wno-array-bounds']))
 
         object_builder.add_source_files(
             'nodestore.cpp',
@@ -639,7 +639,7 @@ for toolchain in all_toolchains:
 
         object_builder.add_source_files(
             'snappy.cpp',
-            CCFLAGS=['-Wno-unused-function'],
+            CCFLAGS=([] if toolchain == 'msvc' else ['-Wno-unused-function']),
             CPPPATH=[
                 'src/snappy/snappy',
                 'src/snappy/config',
diff --git a/appveyor.yml b/appveyor.yml
new file mode 100644
index 000000000..744f2052a
--- /dev/null
+++ b/appveyor.yml
@@ -0,0 +1,77 @@
+# Set environment variables.
+environment:
+  PYTHON: C:/Python27-x64
+
+  # We bundle up protoc.exe and only the parts of boost and openssl we need so
+  # that it's a small download. We also use appveyor's free cache, avoiding fees
+  # downloading from S3 each time. 
+  # TODO: script to create this package.
+  RIPPLED_DEPS_URL: https://s3-ap-northeast-1.amazonaws.com/history-replay/rippled_deps.zip
+
+  # Other dependencies we just download each time.
+  PIP_URL: https://bootstrap.pypa.io/get-pip.py
+  PYWIN32_URL: https://downloads.sourceforge.net/project/pywin32/pywin32/Build%20219/pywin32-219.win-amd64-py2.7.exe
+
+  # Scons honours these environment variables, setting the include/lib paths.
+  BOOST_ROOT: C:/rippled_deps/boost
+  OPENSSL_ROOT: C:/rippled_deps/openssl
+
+# At the end of each successful build we cache this directory. It must be less
+# than 100MB total compressed.
+cache:
+  - 'C:\\rippled_deps'
+
+# This means we'll download a zip of the branch we want, rather than the full
+# history.
+shallow_clone: true
+
+install:
+  # We want easy_install, python and protoc.exe on PATH.
+  - SET PATH=%PYTHON%;%PYTHON%/Scripts;C:/rippled_deps;%PATH%
+
+  # `ps` prefix means the command is executed by powershell.
+  - ps: Start-FileDownload $env:PIP_URL
+  - ps: Start-FileDownload $env:PYWIN32_URL
+
+  # Installing pip will install setuptools/easy_install.
+  - python get-pip.py
+
+  # Pip has some problems installing scons on windows so we use easy install.
+  - easy_install scons
+
+  # Scons has problems with parallel builds on windows without pywin32.
+  - easy_install pywin32-219.win-amd64-py2.7.exe
+  # (easy_install can do headless installs of .exe wizards)
+
+  # Download dependencies if appveyor didn't restore them from the cache.
+  # Use 7zip to unzip.
+  - ps: |
+        if (-not(Test-Path 'C:/rippled_deps')) {
+            Start-FileDownload "$env:RIPPLED_DEPS_URL"
+            7z x rippled_deps.zip -oC:\ -y > $null
+        }
+
+# TODO: This is giving me grief
+# artifacts:
+#   # Save rippled.exe in the cloud after each build.
+#   - path: "build\\rippled.exe"
+
+build_script:
+  # We set the environment variables needed to put compilers on the PATH.
+  - '"%VS120COMNTOOLS%../../VC/vcvarsall.bat" x86_amd64'
+  # Show which version of the compiler we are using.
+  - cl
+  - scons msvc.debug -j%NUMBER_OF_PROCESSORS%
+
+after_build:
+  # Put our executable in a place where npm test can find it.
+  - ps: cp build/msvc.debug/rippled.exe build
+  - ps: ls build
+
+test_script:
+  # Run the unit tests
+  - build\\rippled --unittest
+
+  # Run the integration tests
+  - npm install
+  - npm test