I google'd this problem, and one other user with the same problem got an answer recommending to make sure egui.exe is in the registry, and for both of us it is, and to make sure it is running, and taskmgr shows that it is for both of us. Nonetheless, the ESET icon isn't in the taskbar. How do I diagnose this? I just purchased Smart Security 3 user, and installed the 32 bit in XP HE with latest service packs and security updates. Pentium 4, Dell Inspiron. Previously, I had a trial of ESET installed. Invoking ESET egui manually from the Start menu (points to "D:\Program Files\ESET\ESET NOD32 Antivirus\egui.exe") works fine, so I can start scans, etc., of which I currently have two running. Updates say they work. But, the icon never appears in the taskbar. Lots of other icons work fine.