It was suggested in the Wilders TDS3 forum that maybe NOD would want to know about this. It may or may not be a Trojan variant. NOD32 said that both the original file [zipped though] & also that the executable within the zipfile were OK after being scanned. BTW, NOD had been updated on the previous day, & I run Win98SE. Well anyway, they weren't OK, I became suspicious when the executable "disappeared" from its folder, and WinPatrol alerted me to this, and allowed me to remove a very suss-sounding running program & a restart command. So then I performed a full system scan with NOD - & NOD reported 5 Trojans & deleted them for me. It would be easier if you had a look here - https://www.wilderssecurity.com/showthread.php?t=42414 cos that's where all the relevant info is - & then let me know if Eset would want the original zipfile submitted before I nuke it forever. The Trojan was added to TDS database today.