Actually, Open Source Code Is Better: ReportActually, Open Source Code Is Better: Report
http://www.majorgeeks.com/story.php?id=33365
Trend Micro Announces HijackThis to Go Open Source (Update)
The download of the source was made available in Uniz form or individual files. We have zipped the download back up for easy download and use. You can download the source from Majorgeeks here.
The original HijackThis from Merijn was a great tool back in the day for finding and removing some difficult malware. Every geek had (or still has) this on their computer. The program was taken over by Trend Micro and has not been updated in over a year.