I found a couple of problems after SP2 for ISA2004E, basically if you are using websense integrated with ISA, remove it and then reinstall it. And look on the Microsoft web site, there is a couple of patches for the SP2, which means you will need to fix the SP2 after you install it. Diego ________________________________ From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On Behalf Of Ball, Dan Sent: Wednesday, May 03, 2006 11:53 AM To: isalist@xxxxxxxxxxxxx Subject: [isalist] Windows Server 2003 R2 I'm looking at upgrading our servers to 2003 R2, is there any reason I shouldn't upgrade the ISA server also?