Greetings Here it goes the description: 1. Using Samba 2.2.3a 2. The client is XP 3. Used the .reg file "SignorSeal=0" 4. Started the Net Logon service 5. I joined the domain with success 6. Restarted XP and logged in, also with success, mapping everything... Here is the deal: 7. Updated XP (critical only) 8. XP stops working fine. I looked at the events. There was a problem with COM+ and DCOM related services that couldn't start. I also did the opposite path: Updated XP (works fine) and than join the domain. We get the same behavior. If i stop the Logon service, it works just fine (except the logon part of course...) Besides the usual scream for help for a "how-to", i'd like to understand: Is there something that XP requires to work an a domain enviroment(after update) that only a 2000Server can supply? I'll track the updates and see what they do exactly. Thanks in advance, Carlos Galvão Pinheiro Jr., MsC Electrical Engineer _________________________________________________________________ MSN Photos is the easiest way to share and print your photos: http://photos.msn.com/support/worldwide.aspx