First you must download the program, preferrably from Major Geeks.
Read the editors note and also follow some of his links to get an education about what you're dealing with.
Once you have the program you'll see that it is a zip file. Windows XP users will be able to execute the program fine, Older systems will need something like WinZip to open the file. You may already have something like this on your system.
Run the program and select the top option Do a system scan and save a logile...
The logfile will open in Windows Notepad (default), from there you can select all (<control> + <A>) then open your web browser (FireFox or Internet Exploder) and go to this log analyzer site... http://hjt.iamnotageek.com/
Find the window in the page and click in it and press <Control> + <V> to paste the log. Click on the "PARSE" button at the bottom. For more on the program (Hijack This!) go here. For help with the results of your parsed log go here.
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