Hi Shane, Check out Citrix technote article CTX101644, http://support.citrix.com/kb/entry.jspa?entryID=2199 . This tells you what the various seamless mode flags do. In your case, the relevant section appears to be: 4. USE GETPARENT API Value: 0x40 Explanation: Setting this value to a window enables the Seamless engine to use the GetParent API to get the Owner of the specified window. It won't break the application, although it "might" uncover a seamless window bug. Basically if it works fine without these values, deleting them is probably the right move. regards, Rick Ulrich Mack Volante Systems ________________________________ From: thin-bounce@xxxxxxxxxxxxx on behalf of Shane.Rees@xxxxxxxxxx Sent: Wed 1/02/2006 16:52 To: thin@xxxxxxxxxxxxx Subject: [THIN] Follow Up On Duplicate Icons... Hi All - a while ago I posted about duplicate task bar icons when our ERP application was published seamlessly via Presentation Server 4. I managed to track down the cause (offending reg key below), but wanted to know if anybody is aware what this reg key actually does (or if it will have any implications if i delete it) ?? As soon as I remove this key, the duplicate icons problem goes away... HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Citrix\wfshell\TWI\Tfr mM ClassName TfrmM Method 0x00000001 (1) Type 0x00000040 (64) Any feedback appreciated. Cheers, Shane Rees Systems Engineer Server Management Network & Infrastructure Support Mincom Managed Services Level 6, 193 Turbot Street, Brisbane, QLD 4000, Australia Phone +61 (0) 7 3303 3955 Fax +61 (0) 7 3364 9777 http://www.mincom.com Mincom. The People. The Experience. The Vision. This transmission is for the intended addressee only and is confidential information. If you have received this transmission in error, please delete it and notify the sender. The contents of this e-mail are the opinion of the writer only and are not endorsed by the Mincom Group of companies unless expressly stated otherwise. ************************************************ 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. #####################################################################################