the basic tools first besides the one you have already tried and see if we can name this thing. You said "Have tried many of the previous solutions with no resolve". I don't know what those are because this is a new thread. You've already tried Norton, Ad-Aware and Spybot, try these.
cwshredder (stand alone unit)(another small scanner for certain things, ALL other windows should be closed)
Download anti-trojan (any of the following)
The Cleaner Pro 30 days trial - http://www.moosoft.com
TrojanHunter - http://www.misec.net/ (trial)
Also do an online scan at one or all of these.
Housecall (using IE with Active-X)
Housecall (all browsers using java)
I would also try Ewido SS. It's been removing a lot of nasty stuff lately. It's got a 14 day trial period but even after the trial period, you only lose the guard process, the scanner is still free.
Are you ready: I've been trying to fix someone's computer and ran into a odd situation. Running XP, Was and somewhat still is infected with desktop.html. have removed all references to desktop.html from registry and computer. Have been unable at this point to get the background to normal. Have tried many of the previous solutions with no resolve. Now to the good stuff. There is a program that starts with windows in normal operating mode. It places a small yellow triangle with a black exclamation point in the system tray. If you left pick or right click it, the program starts IE and brings in the search page "http://www.540.filost.com/randomsites/banner.aspx" . Keep in mind that this icon shows up when windows starts in normal mode, it does not show up in safe mode. Also, when I have been able to change the display properties in safe mode, on restart in normal mode, a "HI" folder/program opens on task bar and the yellow triangle does not show up in system tray; although, if the "hi" folder is picked, then it disappears and the triangle appears. While the "HI" folder is on the task bar, and going to task manager, it shows as a running program. then choosing the process it uses, it goes to explorer.exe. You know what happens when you end task on explorer.exe . Norton, adaware, spybot, can't recognize any problems, Norton's database search showed nothing, computer hope showed nothing also.
This program with no name seen along with the yellow triange in system tray, which states "no title" in taskbar settings, does not stem from startup or regedit run, I have turned off all startup programs, and it still starts up. I have turned off all services and there it is. Has anyone heard of this before???
Thanks in advance.