ADS and Windows Integrated Authentication

Dear All,

i have a question according to Windows Integrated Authentication.

Is it possible to use Kerberos Authenication using UME where user data are stored and MS ADS only for authentication issue?

How the users should be mapped as the userID in the Portal and the IDs in ADS are different?

What UME modification has to be done?

Is the Weblog "kerberos implementation with ADS made easy"

right information for that?

Thank you for help!

Regads,

Karol