Windows XP Backup resetting unix perms.

[Danny Carroll]

 Today I decided to make a backup of some of my unix data to an XP
machine in preparation for a migration.
I set windows XP backup running and when it started backing up files in
my home directory I noticed that it set u-x permissions on all of the
files.  
Directories are unaffected.

If I use XP's security dialog to set the permissions back, they are
applied OK.

Has anyone seen this behaviour before?

-D