mercurial/archival.py

--- a/mercurial/archival.py	Thu May 07 13:47:45 2015 -0500
+++ b/mercurial/archival.py	Tue May 05 20:52:38 2015 -0400
@@ -37,6 +37,10 @@
     prefix = util.pconvert(lpfx)
     if not prefix.endswith('/'):
         prefix += '/'
+    # Drop the leading '.' path component if present, so Windows can read the
+    # zip files (issue4634)
+    if prefix.startswith('./'):
+        prefix = prefix[2:]
     if prefix.startswith('../') or os.path.isabs(lpfx) or '/../' in prefix:
         raise util.Abort(_('archive prefix contains illegal components'))
     return prefix