Hi Ronnie, No, the old standalone STA service is no longer full compatible with the newer versions of XenApp from a certain HRP level, which I cannot remember at the moment. It's to do with the XML communications. All XenApp 4.0, 4.5 and 5.0 servers are also STA servers too. So just use you Primary and Backup data collectors. Cheers, Jeremy. From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of Hamilton, Ronnie Sent: Thursday, October 01, 2009 9:59 PM To: thin@xxxxxxxxxxxxx Subject: [THIN] Secure ticket authorities Hi, I have just lost my secure ticket authority server, can I install that component on the same server as the Web interface and Advanced access Control ? thanks Ronnie Visit our website : www.ltai.ie __________________________________________ Lufthansa Technik Airmotive Ireland Limited. Registered in Ireland. Reg. No. 45999. Registered Office: Naas Road, Rathcoole, Co.Dublin. Lufthansa Technik Airmotive Ireland Leasing Limited. Registered in Ireland. Reg. No. 140891. Registered Office: Naas Road, Rathcoole, Co.Dublin. __________________________________________ This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error, please advise by return email and delete all copies of the message. ##################################################################################### Confidentiality and Privilege Notice This document is intended solely for the named addressee. The information contained in the pages is confidential and contains legally privileged information. If you are not the addressee indicated in this message (or responsible for delivery of the message to such person), you may not copy or deliver this message to anyone, and you should destroy this message and kindly notify the sender by reply email. Confidentiality and legal privilege are not waived or lost by reason of mistaken delivery to you. #####################################################################################