I am not a Geek has posted a WildTangent removal guide
WildTangent was founded in 1998 by Alex St. John, the principal creator of Microsoft's DirectX multimedia platform. From the beginning, the company's mission has been to enable the delivery of the richest interactive content experiences online using the least amount of bandwidth. To that end, the first version of WildTangent's technology platform, Web Driver 1.0, was released in September 1999. Since then over 50 million people have adopted the WildTangent Web Driver to enrich their online experience.Read more
This is an online gaming package that is installed by a number of third party applications and even OEMs, ISPs and AIM. The games aspect of this is really rather cool. The being installed without you asking for it isn't cool at all.