One thing I noticed in deploying XA5 was how much extra resource it seemed to use *before* any punters were on. Did you do some load testing before your role out? You could do a logon trace - maybe look at the timings ? if you've still got a w2k3 box you could run a userenv.log trace w2k8 sticks the trace into the event log iirc. Maybe there's a registry/script change/update that's hosing the logon? From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of Anthony Green Sent: 08 January 2010 02:25 To: thin@xxxxxxxxxxxxx Subject: [THIN] 2008 vs 2003 login times I've done a few upgrades recently moving people from 2003 to 2008 SP2 and latest Xenapp. Nearly every time the users have noticed a longer login time. One company went from 7 secs to 14 secs (i know it's not a long login time but it has doubled!). We basically replicated their Windows 2003 setup (xenapp\DCs\File\Print\SQL) but have everything on Windows 2008. Most things work ok but the login times are killing me, I'm having to explain why this is without really knowing why there is such a difference. Anyone else notice this? Any tips? Thanks, Ant.