Additional Details
Adware:W32/GameVance is a program that collects anonymous usage information from a user's computer that are used to select and display popup, popunder and other kinds of advertisements.
The software is installed in exchange for free online games from Gamevance.
The screeenshot below shows Gamevance's software license terms:

The image below shows the end of the installation process:
InstallationDuring installation, the program modifies the Windows Registry to install a Browser Helper Object (BHO). The changes also ensure the program starts at every system startup. Unlike some adware programs, Gamevance also adds a registry key to ensure it has an entry in the Add/Remove Programs menu.