Paretologic Reviews

I ran a free antispyware scan with XoftSpy from www.paretologic.com and it listed that my notebook is infected with CWS.Oslogo (type: registry value; threat level: Severe risk;object: software\microsoft\internet explorer\styles\user stylesheet ) . For removing this registry entry I was asked to purchase the XoftSpy program. What are the ways/instructions to MANUALLY & SAFELY edit the [...]