diff --git a/colorama/initialise.py b/colorama/initialise.py
index 4bce9f22..834962a3 100644
--- a/colorama/initialise.py
+++ b/colorama/initialise.py
@@ -16,7 +16,8 @@
 
 
 def reset_all():
-    AnsiToWin32(orig_stdout).reset_all()
+    if AnsiToWin32 is not None:    # Issue #74: objects might become None at exit
+        AnsiToWin32(orig_stdout).reset_all()
 
 
 def init(autoreset=False, convert=None, strip=None, wrap=True):