|Direction:||Client to Server|
|Used By:||(nothing or unknown)|
This message will give you data you need for SID_AUTH_ACCOUNTUPGRADE (0x57). This message is used to upgrade an existing account from Old Logon System to New Logon System. You must send this before you can send BNLS_UPGRADEPROOF (0x08).
Important: You must send BNLS_LOGONCHALLENGE (0x02) or BNLS_CHANGECHALLENGE (0x05) before sending this. Otherwise, the results are meaningless.
Note: Since Old Logon System and New Logon System are incompatible, you can change the password and upgrade the account at the same time. This is not required - the old password and the new password may be identical for this message.