Thanks Greg. I'm beginning to think that I need to leave the empty folder and put security on it like you said. What bothers me most is that I thought that a general user couldn't install software, yet this did with Yahoo messenger. Ken ... -----Original Message----- From: Greg Reese [mailto:GReese@xxxxxxxxxxxxxxxx] Sent: Monday, December 15, 2003 11:51 AM To: thin@xxxxxxxxxxxxx Subject: [THIN] Re: Yahoo messenger if it installs to a folder or reg key, just leave the structure there but empty and set the security to it to no access. Disable the stuff in IE for loading Active x controls. This can lead to other problems though. Use it cautiously. I have had it sneak on my servers from time to time. I don't think it does any damage. Greg -----Original Message----- From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx]On Behalf Of Lutz, Ken Sent: Monday, December 15, 2003 2:06 PM To: 'thin@xxxxxxxxxxxxx' Subject: [THIN] Re: Yahoo messenger That will block the site, but how do I set up my Citrix servers so that the users can't install software, yet have the level of access they need to Program Files? I always thought that basic users couldn't install software. Ken ... -----Original Message----- From: Jim Kenzig http://thethin.net [mailto:jimkenz@xxxxxxxxxxxxxx] Sent: Monday, December 15, 2003 10:58 AM To: thin@xxxxxxxxxxxxx Subject: [THIN] Re: Yahoo messenger Point all of the yahoo messenger servers to 127.0.0.1 in your hosts file or dns. JK -----Original Message----- From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx]On Behalf Of Lutz, Ken Sent: Monday, December 15, 2003 1:27 PM To: Thin - List (thin@xxxxxxxxxxxxx) Subject: [THIN] Yahoo messenger I just found Yahoo messenger on one of my Citrix servers. I thought that I had the server locked down tight enough that users couldn't install their own software. None of my users have any elevated rights. They are not power users. It looks like one user loaded the software, and then another was able to access it. What is the best way to lock this down so that my users can't install any software? Do I need to remove the Creator Owner setting from the ACL for the Program Files folder to keep users from installing software? How are others preventing the loading of software by users? I install the software that I want loaded, and I install as an administrator. Windows 2000 SP3 MetaFrame FR2/SP2 in a Windows 2000 AD domain. Ken Lutz Information Systems Department Spokane County