Hi Jan, An in place upgrade is fairly straight forward although the methodology varies according to the size of your farm: Install MF Xp SP4, only issue we had here was one customer who was using a non system account for the ADF installer service. This stopped the upgrade at the installing services point but we changed the service logon and the upgrade worked. Depending on the timing (how long it's going to take) you might want to consider installing the post SP4 hotfix rollup. The main strategy here is that if you're going to stage the upgrade rather than do all the servers together you need a stable XP platform. The next step varies. The Citrix recommendation is that you upgrade to PS4 into a new farm, or at the very least you ensure a separate zone and ZDC for the PS4 servers. If you're doing all your servers together I wouldn't worry about a new farm. In this case I generally copy the datastore (SQL, MSDE, NO MSAcess!!), make a new DSN file and either use "dsmaint config" or chfarm to point each server to the new farm at the point of upgrade. There is a minimal risk that the datastore might get clagged. This way the original production farm is stil untouched. If the upgrade time is short, the new datastore can have the same farm name, if it's a staged upgrade, I'd suggest a new farm. If you have to talk to 2 farms, then having a WI front end wil make ife a lot easier. Anyway, once you've sorted out the farm/datastore stuff the upgrade to PS4 is straightforward. Maybe we've been lucky but no problems so far. Install the post PS4 hotfixes and the job is almost done. Installing SP1 can sometimes be a challenge but the only significant (show stopper) problem we've had is with the driver signing subsystem. (can'r validate upfate.inf). If you stop the cryptography service, delete %systemroot%\system32\catroot2, delete %systemroot%\system32\catroot\tmp*, and the restart the cryptography service, SP1 should install fine. As you're probably aware the "extra" security in SP1 will break a few things so testing on a trial upgraded server beforehand isn't a bad idea. Have fun. regards, Rick Ulrich Mack Volante Systems ________________________________ From: thin-bounce@xxxxxxxxxxxxx on behalf of Jan Homan Sent: Thu 19/01/2006 20:43 To: thin@xxxxxxxxxxxxx Subject: [THIN] Upgrade Farm XP FR3 to MPS 4.0 We are planning to do an upgrade (according Citrix guidelines) of a W2003 (no SP1) farm running XP FR3 to MPS 4.0. Has anyone done this and if so did (s)he run into issues/problems ? Thanks. Jan ************************************************ For Archives, RSS, to Unsubscribe, Subscribe or set Digest or Vacation mode use the below link: //www.freelists.org/list/thin ************************************************ ##################################################################################### This e-mail, including all attachments, may be confidential or privileged. Confidentiality or privilege is not waived or lost because this e-mail has been sent to you in error. If you are not the intended recipient any use, disclosure or copying of this e-mail is prohibited. If you have received it in error please notify the sender immediately by reply e-mail and destroy all copies of this e-mail and any attachments. All liability for direct and indirect loss arising from this e-mail and any attachments is hereby disclaimed to the extent permitted by law. #####################################################################################