diff -r 41087fe3db69 -r 9e1a250c7235 server/virtualenv/res/lib/lib_create_env.py
--- a/server/virtualenv/res/lib/lib_create_env.py	Tue Feb 21 12:58:52 2012 +0100
+++ b/server/virtualenv/res/lib/lib_create_env.py	Tue Feb 21 13:19:19 2012 +0100
@@ -219,9 +219,9 @@
         logger.notify("Install %s from %s with %s" % (key,res_env.URLS[key][res_source_key],method))
         if method == 'pip':
             if sys.platform == 'win32':
-                args = [os.path.abspath(os.path.join(home_dir, 'Scripts', 'pip')), 'install', '-E', os.path.abspath(home_dir), res_env.URLS[key][res_source_key]]
+                args = [os.path.abspath(os.path.join(home_dir, 'Scripts', 'pip')), 'install', res_env.URLS[key][res_source_key]]
             else:
-                args = [os.path.abspath(os.path.join(home_dir, 'bin', 'pip')), 'install', '-E', os.path.abspath(home_dir), res_env.URLS[key][res_source_key]]
+                args = [os.path.abspath(os.path.join(home_dir, 'bin', 'pip')), 'install', res_env.URLS[key][res_source_key]]
             if option_str :
                 args.insert(4,option_str)
             call_subprocess(args,