Where do you enable/disable that in Excel 2007? I'm not sure about a policy setting but you can always use a utility like RegShot or ProcessMonitor to see what key (if any) is changing when you toggle that setting. Then just populate the setting with Group Policy Preferences, a script, or your own custom ADM. Jamie Nelson | Operations Consultant | BI&T Infrastructure-Intel | Devon Energy Corporation | Work: 405.552.8054 | Mobile: 405.200.8088 | http://www.dvn.com <http://www.dvn.com/> From: gptalk-bounce@xxxxxxxxxxxxx [mailto:gptalk-bounce@xxxxxxxxxxxxx] On Behalf Of Dropkin, Joseph Sent: Thursday, November 20, 2008 1:07 PM To: gptalk@xxxxxxxxxxxxx Subject: [gptalk] Disabling Multi-threaded processing in Excel 2007 Is there a ADM setting in Office 2007 to disable or modify the "Enable Multi-threaded calculation". We are running a Terminal server environment, and I don't mind if a user need to hog some of the server momentarily, but I don't want that user to use every last drop of available CPU. Confidentiality Warning: This message and any attachments are intended only for the use of the intended recipient(s), are confidential, and may be privileged. If you are not the intended recipient, you are hereby notified that any review, retransmission, conversion to hard copy, copying, circulation or other use of all or any portion of this message and any attachments is strictly prohibited. If you are not the intended recipient, please notify the sender immediately by return e-mail, and delete this message and any attachments from your system.