From ba535ea4958e17a2cb2e79df093f50d057c07562 Mon Sep 17 00:00:00 2001
From: "J. Goutin" <JGoutin@users.noreply.github.com>
Date: Thu, 28 Jul 2016 23:03:45 +0200
Subject: Fix for #646

---
 setuptools/msvc.py | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'setuptools/msvc.py')

diff --git a/setuptools/msvc.py b/setuptools/msvc.py
index c762c28f..6fb3300b 100644
--- a/setuptools/msvc.py
+++ b/setuptools/msvc.py
@@ -449,10 +449,14 @@ class RegistryInfo:
         for hkey in self.HKEYS:
             try:
                 bkey = winreg.OpenKey(hkey, key, 0, winreg.KEY_READ)
+            except OSError:
+                continue
             except IOError:
                 continue
             try:
                 return winreg.QueryValueEx(bkey, name)[0]
+            except OSError:
+                pass
             except IOError:
                 pass
 
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