diff --git a/libmproxy/main.py b/libmproxy/main.py
index d7c5f22cf..3c908ed9f 100644
--- a/libmproxy/main.py
+++ b/libmproxy/main.py
@@ -38,10 +38,6 @@ def get_server(dummy_server, options):
 
 
 def mitmproxy(args=None):  # pragma: nocover
-    if os.name == "nt":
-        print("Error: mitmproxy's console interface is not supported on Windows. "
-              "You can run mitmdump or mitmweb instead.", file=sys.stderr)
-        sys.exit(1)
     from . import console
 
     check_pyopenssl_version()
diff --git a/setup.py b/setup.py
index 8ae24c4eb..34c7607b3 100644
--- a/setup.py
+++ b/setup.py
@@ -1,6 +1,7 @@
 from setuptools import setup, find_packages
 from codecs import open
 import os
+import sys
 from libmproxy import version
 
 # Based on https://github.com/pypa/sampleproject/blob/master/setup.py
@@ -11,7 +12,66 @@ here = os.path.abspath(os.path.dirname(__file__))
 with open(os.path.join(here, 'README.rst'), encoding='utf-8') as f:
     long_description = f.read()
 
-console_scripts = ["%s = libmproxy.main:%s" % (s, s) for s in ("mitmproxy", "mitmdump", "mitmweb")]
+# Core dependencies
+deps = {
+    "netlib>=%s, <%s" % (version.MINORVERSION, version.NEXT_MINORVERSION),
+    "pyasn1~=0.1.9",
+    "tornado~=4.3.0",
+    "configargparse~=0.10.0",
+    "pyperclip~=1.5.22",
+    "blinker~=1.4",
+    "pyparsing~=2.0.5",
+    "html2text~=2015.11.4",
+    "construct~=2.5.2",
+    "six~=1.10.0",
+    "lxml~=3.4.4",
+    "Pillow~=3.0.0",
+    "watchdog~=0.8.3",
+}
+# A script -> additional dependencies dict.
+scripts = {
+    "mitmproxy": {
+        "urwid~=1.3.1",
+    },
+    "mitmdump": {
+        "click~=6.2",
+    },
+    "mitmweb": set()
+}
+# Developer dependencies
+dev_deps = {
+    "mock>=1.0.1",
+    "pytest>=2.8.0",
+    "pytest-xdist>=1.13.1",
+    "pytest-cov>=2.1.0",
+    "coveralls>=0.4.1",
+    "pathod>=%s, <%s" % (version.MINORVERSION, version.NEXT_MINORVERSION),
+    "sphinx>=1.3.1",
+    "sphinx-autobuild>=0.5.2",
+    "sphinxcontrib-documentedlist>=0.2",
+}
+example_deps = {
+    "pytz~=2015.7",
+    "harparser~=0.2",
+    "beautifulsoup4~=4.4.1",
+}
+# Add *all* script dependencies to developer dependencies.
+for script_deps in scripts.values():
+    dev_deps.update(script_deps)
+
+# Remove mitmproxy for Windows support.
+if os.name == "nt":
+    del scripts["mitmproxy"]
+    deps.add("pydivert~=0.0.7")  # Transparent proxying on Windows
+
+# Add dependencies for available scripts as core dependencies.
+for script_deps in scripts.values():
+    deps.update(script_deps)
+
+if sys.version_info < (3, 4):
+    example_deps.add("enum34~=1.0.4")
+
+console_scripts = ["%s = libmproxy.main:%s" % (s, s) for s in scripts.keys()]
 
 setup(
     name="mitmproxy",
@@ -43,54 +103,15 @@ setup(
     packages=find_packages(),
     include_package_data=True,
     entry_points={
-        'console_scripts': console_scripts
-    },
-    install_requires=[
-        "netlib>=%s, <%s" % (version.MINORVERSION, version.NEXT_MINORVERSION),
-        "pyasn1~=0.1.9",
-        "tornado~=4.3.0",
-        "configargparse~=0.10.0",
-        "pyperclip~=1.5.22",
-        "blinker~=1.4",
-        "pyparsing~=2.0.5",
-        "html2text~=2015.11.4",
-        "construct~=2.5.2",
-        "six~=1.10.0",
-        "lxml~=3.4.4",
-        "Pillow~=3.0.0",
-        "watchdog~=0.8.3",
-        "click~=6.2",
-    ],
+        'console_scripts': console_scripts},
+    install_requires=list(deps),
     extras_require={
-        ':sys_platform == "win32"': [
-            "pydivert~=0.0.7",
-        ],
-        ':sys_platform != "win32"': [
-            "urwid~=1.3.1",
-        ],
-        ':python_version < "3.4"': [
-            "enum34~=1.0.4",
-        ],
-        'dev': [
-            "mock>=1.0.1",
-            "pytest>=2.8.0",
-            "pytest-xdist>=1.13.1",
-            "pytest-cov>=2.1.0",
-            "coveralls>=0.4.1",
-            "pathod>=%s, <%s" % (version.MINORVERSION, version.NEXT_MINORVERSION),
-            "sphinx>=1.3.1",
-            "sphinx-autobuild>=0.5.2",
-            "sphinxcontrib-documentedlist>=0.2",
-        ],
+        'dev': list(dev_deps),
         'contentviews': [
             "pyamf~=0.7.2",
             "protobuf~=2.6.1",
-            "cssutils~=1.0.1",
-        ],
-        'examples': [
-            "pytz~=2015.7",
-            "harparser~=0.2",
-            "beautifulsoup4~=4.4.1",
+            "cssutils~=1.0.1"
         ],
+        'examples': list(example_deps)
     }
 )