On the other hand Roger, I should have read a bit further! Less haste called for. Further down the page I cited before we are told: Note: csrss.exe is also process which is registered as a number of mass mailing worms and trojans. These viruses are distributed via the Internet through e-mail and comes in the form of an e-mail message, in the hopes that you open it's hostile attachment. The worm has it's own SMTP engine which means it gathers E-mails from your local computer and re-distributes itself. In worst cases this worm can allow attackers to access your computer, stealing passwords and personal data. It is a registered security risk and should be removed immediately Should not be disabled, required for essential applications to work properly. To get control over your running programs we suggest WinTasks 5 Pro Author: Microsoft Corp Part Of: Microsoft Windows Operating System Remove csrss.exe: Use WinTasks So, some detailed reading required here. But maybe there is a solution afterall. Ray Personal emails: Email me at mailto:ray-48@xxxxxxxx ----- Original Message ----- From: roger.south To: access-uk@xxxxxxxxxxxxx Sent: Saturday, March 04, 2006 8:35 AM Subject: [access-uk] Removing a Trojan Hi All A few days ago my firewall told me an application named csrrs.exe was asking to access the internet. I have not heard of this before so did a search on Google to find it's a well known trojan worm. I permanently denied access and set about removing it. I can't seem to find a removal tool on the web. I then did searches only to come up with blanks. AVG Pro, Panda, Spybot, AdAware, CClean, Registry Mechanic and Housecall all fail to find it. A search on my XP Home also proves negative. But I had call to go to msconfig to check what was running at start-up and there it is large as life and twice as natural. The location was given as: SOFTWARE\Microsoft\Windows\CurrentVersion\Run I guess this to be a registry location so went to regedit and did a Find. It seems to be everywhere in there. I could remove it manually but the registry makes me very nervous and weak at the knees so I'm looking for any knowledge you guys may have as to if I'm doing the right thing here, please. Many thanks Roger