diff --git a/.appveyor.yml b/.appveyor.yml
new file mode 100644
index 0000000..5c1faf5
--- /dev/null
+++ b/.appveyor.yml
@@ -0,0 +1,34 @@
+build: off
+
+environment:
+  matrix:
+    - PYTHON: "C:\\Python27-x64"
+      PYTHON_VERSION: "2.7.x"
+      PYTHON_ARCH: "64"
+      TOXENV: "py27"
+
+    - PYTHON: "C:\\Python34-x64"
+      PYTHON_VERSION: "3.4.x"
+      PYTHON_ARCH: "64"
+      TOXENV: "py34"
+
+    - PYTHON: "C:\\Python35-x64"
+      PYTHON_VERSION: "3.5.x"
+      PYTHON_ARCH: "64"
+      TOXENV: "py35"
+
+    - PYTHON: "C:\\Python36-x64"
+      PYTHON_VERSION: "3.6.x"
+      PYTHON_ARCH: "64"
+      TOXENV: "py36"
+
+install:
+  - "SET PATH=%PYTHON%;%PYTHON%\\Scripts;%PATH%"
+  - "python --version"
+  - "python -c \"import struct; print(struct.calcsize('P') * 8)\""
+  - "pip install --disable-pip-version-check --user --upgrade pip"
+  - "%CMD_IN_ENV% pip install tox coverage"
+
+test_script:
+  # Run the project tests
+  - "%CMD_IN_ENV% tox"
diff --git a/.travis.yml b/.travis.yml
index 6236098..e99a0c8 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,12 +1,20 @@
 language: python
 python:
   - "2.7"
+  - "3.4"
   - "3.5"
   - "3.6"
+
+sudo: false
+
+cache: pip
+
 install:
   - pip install tox-travis
+
 script:
   - tox
+
 notifications:
   email:
     recipients:
diff --git a/tox.ini b/tox.ini
index fa04b7b..99ca208 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py{36}
+envlist = py27,py34,py35,py36
 
 [testenv]
 passenv = TRAVIS TRAVIS_JOB_ID TRAVIS_BRANCH