Make sure the egg is never zipped; the dlls will not work like that
diff --git a/setup.py b/setup.py
index 5d8923e..19cfc8c 100755
--- a/setup.py
+++ b/setup.py
@@ -82,6 +82,7 @@
                      'OpenSSL.version', 'OpenSSL.test.__init__',
                      'OpenSSL.test.test_crypto',
                      'OpenSSL.test.test_ssl'],
+      zip_safe = False,
       package_data = package_data,
       description = 'Python wrapper module around the OpenSSL library',
       author = 'Martin Sjögren, AB Strakt',