When ever i browse the internet (for the past two days) using INTERNET EXPLORER,I'm notified by my anti virus (AVG FREE EDITION), the following TROJAN HORSE : TROJAN HORSE DOWNLOADER.Istbar.4.P, (File Name = winzp32.exe ; srvlvj.exe : TROJAN HORSE Dialer.BPL (File Name = win131.tmp ; win623.tmp) both these are CAUGHT at the same time by AVG anti-virus, this has happened two times using "IE" & once using OPERA 8.54/ 3B Browser. I'm not sure about this happening when using Opera. Because at the same time i was using 3B browser. I've Installed ZoneLabs Security PRO (Now Fully Updated). i'm Also using "a-squared" , Windows Defender (both up to date). Can you tell me how to remove these. (One of my friend told me TROJAN CANNOT BE REMOVED easily once it Infects a PC). And When i make a Rescue Disk Using AVG it shows me an error ----- "System Drive C:\ uses NTFS file system & Rescue Disk may not have access to this Drive." but it continues to create the RESCUE DISK. My PC config: HP Pavilion, WINDOWS XP Home Edition SP2 (Fully Updated), 256MB RAM, Intel 915G M/B, Intel GMA 900 Gfx. OS is on C: Drive which is NTFS.