Hi Brian, Assoc and Ftype will do the job for you. Syntax: assoc file_extension=file_type ftype file_type=path_to_executable_name "%1" eg assoc .tiff=TIFImage.Document ftype TIFImage.Document=rundll32.exe C:\WINNT\system32\shimgvw.dll,ImageView_Fullscreen "%1" The following batch file can be used to backup your file associations. -------- saveassoc.cmd -------- @echo off :: saveassoc.cmd - save system file associations in a format so they can be restored for /f "delims=*" %%i in ('assoc') do @echo assoc %%i >> fixassoc.cmd for /f "delims=*" %%i in ('ftype') do @echo ftype %%i >> fixassoc.cmd :done ------------- end ---------------------- fixassoc.cmd can then be used to restore file associations if something bad happens. regards, Rick Ulrich Mack Volante Systems Ltd 18 Heussler Terrace, Milton 4064 Queensland Australia. Ph: +61 7 3246 7704 email: rmack@xxxxxxxxxxxxxx web: www.volante.com.au -----Original Message----- From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of Brian Hall Sent: Tuesday, 19 October 2004 12:24 AM To: thin@xxxxxxxxxxxxx Subject: [THIN] W2KTS file association issue I'm running a single W2K TS server w/Citrix 1.8 FR2 and have a problem changing file associations. A systems admin at my company recently installed an application on the server that associated itself to gif, tif, tiff and jpg file extensions. I can successfully enable the "File Types" option in Explorer, as administrator, and change the extensions use Microsoft Image Preview application. Unfortunately, the change only applies to file associations in the profile the change was made in (including local admin and domain admin). I thought that modifying the HKLM setting and changing the file association as per MS article 257592 would work globally? Do I need to use FTYPE and ASSOC to manually change the file types? I realize this topic is covered extensively in the archives but have yet to find anything to remedy the situation. Thanks, ##################################################################################### 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. #####################################################################################