KeyExpirationTime of KERB_EXTERNAL_TICKET missing on Windows XP 64 bit

Jeffrey Altman jaltman at
Tue Dec 1 09:31:32 EST 2009

The LSA Kerberos functions are not implemented in the WOW64 environment
on XP64 and 2003 64.   They succeed but return garbage.  You must use
64-bit apps or Vista or higher.

Jeffrey Altman

Max (Weijun) Wang wrote:
> Hi All
> I have a 32-bit program calling  
> LsaCallAuthenticationPackage(KerbRetrieveTicketMessage). It works fine  
> on Win XP 32 bit but fails on Win XP 64 bit.
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