Howdy,

I have an app that requests data from a server. I am using Kerberos tickets
for authentication. My problem is that users of remote machines don't log
off those machines and after a number of days, the ticket granting ticket
reaches the end of its renewal period. Under Windows XP sp2 (can't go to sp3
yet), my calls to get a new ticket fail. If I can delete the ticket with
klist.exe, the program will get a new ticket and the user is authenticated.

I am trying to get the function CredDelete to remove the Kerberos ticket so
I can request a new one, but all the calls return that they can't find the
ticket (error 1168). The code looks like

LPCWSTR pwstrPrincipal = (LPCWSTR) "krbtgt/myPlace";
BOOL bCredBack = ::CredDeleteW(pwstrPrincipal,(DWORD) 1,(DWORD)0);

Any ideas what I'm doing wrong?
--
Frank Perry
LavaLeaf Software

Sorry, but this newsgroup is for questions about security in Access, the
database product that's part of Office Professional.

You'd be best off reposting your question to a newsgroup related to Windows.

--
Doug Steele, Microsoft Access MVP
http://I.Am/DougSteele
(no private e-mails, please)


"Frank Perry" <(E-Mail Removed)> wrote in message
news:3EF5C1E2-3937-4DEB-81B4-(E-Mail Removed)...
> Howdy,
>
> I have an app that requests data from a server. I am using Kerberos
> tickets
> for authentication. My problem is that users of remote machines don't log
> off those machines and after a number of days, the ticket granting ticket
> reaches the end of its renewal period. Under Windows XP sp2 (can't go to
> sp3
> yet), my calls to get a new ticket fail. If I can delete the ticket with
> klist.exe, the program will get a new ticket and the user is
> authenticated.
>
> I am trying to get the function CredDelete to remove the Kerberos ticket
> so
> I can request a new one, but all the calls return that they can't find the
> ticket (error 1168). The code looks like
>
> LPCWSTR pwstrPrincipal = (LPCWSTR) "krbtgt/myPlace";
> BOOL bCredBack = ::CredDeleteW(pwstrPrincipal,(DWORD) 1,(DWORD)0);
>
> Any ideas what I'm doing wrong?
> --
> Frank Perry
> LavaLeaf Software