Index: config.py
==================================================================
--- config.py
+++ config.py
@@ -338,11 +338,14 @@
         method = self.method.upper()
         if method != "ERR":
             if "debug" in conf and not conf.debug:
                 return
         # color/prefix
-        method = r"[{}[{}]".format(self.colors.get(method.split("_")[0], "47m"), method)
+        if conf.windows:
+            method = "[%s]" % method
+        else:
+            method = r"[{}[{}]".format(self.colors.get(method.split("_")[0], "47m"), method)
         # output
         print(method + " " + " ".join([str(a) for a in args]), file=sys.stderr)
 
     # Colors
     colors = {