Issue #17896: Move Windows external lib sources from .. to externals.
diff --git a/PCbuild/build_ssl.py b/PCbuild/build_ssl.py
index 53c7e35..3ba2483 100644
--- a/PCbuild/build_ssl.py
+++ b/PCbuild/build_ssl.py
@@ -69,7 +69,7 @@
     propfile = (os.path.join(os.path.dirname(__file__), 'pyproject.vsprops'))
     with open(propfile) as f:
         m = re.search('openssl-([^"]+)"', f.read())
-        return "..\..\openssl-"+m.group(1)
+        return "..\externals\openssl-"+m.group(1)
 
 
 def create_makefile64(makefile, m32):