AVG cannot remove TRJ'S

Looks like I'm not alone with this problem, Win. XP Home, AVG finding 2 Trojans and can't remove them, I've read thru 15+ pages in this Forum and gotten some new ideas to try, so far using Safe Mode, Admin. logon, and turning off Sys. Restore has not helped, ran Trend Micro - could not find, ran Avast - found them, thought I deleted them, went back to AVG and they were still there, tried Trojan Cleaner, A Squared, AVG tool, and a few others to no avail, have run Spybot and Adaware untill they come up clean, AVG still says there is a problem - Trojan Horse PSW Agent T & U, one is in ( c:\ doc. & settings\local settings\temp\sysger.dat ) , the other one is in (c:\ windows \ AppPatch\regsys.exe ) , I can find both of these files but they are in use and cannot be manually deleted - I'm going to try MG download # 4063 "McAfee Avert Stinger" and the "process tab" in Task Mgr. to end task of the file and then delete(maybe) - any other thoughts from you MG'ers, this is my Niece's computer and she lives 20+ miles away, I'll wait to here back before making the trip -

 

THANKS everybody, I'll be going back to my Niece's early next week, will try all suggestions and let you know how I make out.

 

I was able to remove a Trojan that AVG couldn't kill by moving the infected file to the desktop, then renaming it to .old from whatever extension it has (.exe or whatever). Then boot into safe mode and delete it. Often the files are in use, so you probably can't delete it without booting to safe mode. Hope this helps.

 

Just to let you all know, that with everybodies help from MG's I was sucessful in getting both of my Nieces computers, virus free and spyware free , the information found here is priceless, KEEP UP THE GOOD WORK !!!!