Thread: Error message appears while operating

My PC has a dual core processor, 512 MB of RAM, and Windows XP. Whenever the PC boots Windows, instead of the user names, an error message appears, saying "Iass.dll is missing, go to safe mode, see the log file and then restasrt". But the safe mode also shows the same message. Please tell me what to do now.

Your co.mputer is infected with a virus. Please download the latest definitions for your antivirus and antispyware programs and scan your computer. Also download and use Hijaskthis to clean unwanted entries which might be hijacking your registry.