Hi Mary and welcome to GeeksToGo!
HiJackthis is a freeware tool made by Merijn. Its used to scan your computer and give a text log which lists some things that are going on your computer. Such as running processes, browser home pages, Browser search engines, BHO (browser Helper Objects), ToolBars, programs that are on startup including Non Windows services, IE Plugins, LSP just to name some of them.
With this information, we can ususally tell if a person is infected with nasty Malware, and also use this tool in assisting us in fixing the problem.
If you interested in the fight against Malware, you may want to join us here and start at GeekU
YOu may want to check out this thread. Here you can download HiJackThis (HJT) and check it out yourself. You Must Read This Before Posting A Hijackthis Log
Hope this helps
Edited by Excal, 26 August 2005 - 12:20 AM.