WebApp Sec: Using SPNEGO for web SSO

[Burak DAYIOGLU <dayioglu () metu edu tr>]

Hi all,
I'm trying to set up a development network to experiment SPNEGO with 
Windows desktop clients and a Java Application running on top of Sybase 
Enterprise Application Server.
From what I read from the available Internet documentation SPNEGO 
provides seamless single sign-on with Windows domain integration, which 
is what I am looking for.
However, I am unable to find out any acceptor components to run on the 
application server. Are there any free acceptor implementations? Are 
there any commercial offerings that support the Sybase EA Server?
with regards,
-bd