Pixelique

There're several applications you can use to scan if there's any spyware in your work and play 'box'.
The very best of all but NOT free is Spyware Doctor from PcTools. 2nd place is Ad-Aware Personal Edition, a free version from Lavasoft.
The next good in scanning and removing spyware and adware comes from PepiMK Software, Spybot S&D a freeware also.

One more also quite good in scanning and deleting spywares as well as adwares is from Microsoft. Microsoft Windows AntiSpyware while it's still in beta version but good enough to give you peace of mind out of the malicious items.

You also can put in companion to them a prevention spyware program SpywareBlaster, this application could blocked harmful list of addresses on your browser (IE and Firefox supported).