title: AD return 8009030C: LdapErr: DSID-0C09043E, comment: AcceptSecurityContext error, data 0, vece
body: <p>I use Java's LdapContext to authenticate to one AD server. It works well on Windows7 home basic,enterprise, professional version.But AD throws resultcode 49 when the client is running on Windows7 ultimate and Vista ultimate.
  What's wrong with these two operating system?
  And how I fix that?</p>