diff --git a/ebook_converter/__init__.py b/ebook_converter/__init__.py
index 1f08880..ae80283 100644
--- a/ebook_converter/__init__.py
+++ b/ebook_converter/__init__.py
@@ -14,12 +14,11 @@ from ebook_converter.constants_old import islinux, isfrozen, \
     isbsd, __appname__, __version__, __author__, \
     config_dir
 from ebook_converter.ebooks.html_entities import html5_entities
-from ebook_converter.startup import winutil, winutilerror
 
 
 if False:
     # Prevent pyflakes from complaining
-    winutil, winutilerror, __appname__, islinux, __version__
+    __appname__, islinux, __version__
     isfrozen, __author__
     isbsd, config_dir
 
diff --git a/ebook_converter/startup.py b/ebook_converter/startup.py
index 157a9ee..b1227ca 100644
--- a/ebook_converter/startup.py
+++ b/ebook_converter/startup.py
@@ -13,25 +13,9 @@ builtins.__dict__['dynamic_property'] = lambda func: func(None)
 
 
 _run_once = False
-winutil = winutilerror = None
 
 if not _run_once:
     _run_once = True
-    from importlib import import_module
-
-    class DeVendor(object):
-
-        def find_spec(self, fullname, path, target=None):
-            spec = None
-            if fullname == 'calibre.web.feeds.feedparser':
-                m = import_module('feedparser')
-                spec = m.__spec__
-            elif fullname.startswith('calibre.ebooks.markdown'):
-                m = import_module(fullname[len('calibre.ebooks.'):])
-                spec = m.__spec__
-            return spec
-
-    sys.meta_path.insert(0, DeVendor())
 
     # Ensure that all temp files/dirs are created under a calibre tmp dir
     from ebook_converter.ptempfile import base_dir