What is AntiSpyware Shield?
AntiSpyware Shield is known as fake anti-spyware application. It trojan infects system by visiting suspicious websites or downloading corrupt files and applications and displays exaggerated PC security alerts trying to involve victim into program purchase. Once downloaded AntiSpyware Shield begins computer scan outright and will be launched every time "Windows" start.
Also known as AntiSpywareShield, AntiSpywareShield 2.1.
Author: antispyshield.com
Infection is noticed by a baloon in the taskbar area:

Also known as AntiSpywareShield, AntiSpywareShield 2.1.
Author: antispyshield.com
Infection is noticed by a baloon in the taskbar area:

AntiSpyware Shield removal tool:
- Spyware Doctor (see here for the installation guide)
Screenshot:

AntiSpyware Shield Entries:
The following files are created: AntiSpywareShield.exe, AntiSpywareShieldSetup.exe (setup file)
Hijackthis Entries:
O4 - HKCU\..\Run: [AntiSpywareShield] C:\Program Files\AntiSpywareShield\AntiSpywareShield.exe