Os lo podeis descargar del site de microsoft sin coste alguno, no tiene mala pinta y no funciona tan mal... lo unico que no me acaba de convencer es el SpyNet... Segun microsoft en su web:
SpyNet™ is a voluntary worldwide community of Windows AntiSpyware users that plays a key role in determining which suspicious programs are classified as spyware. Any user can choose to join SpyNet™ and report potential spyware to Microsoft. Users participating in the global SpyNet™ network help to discover new threats quickly so everyone is better protected. Signatures are created for programs that are identified as spyware and made available to all users.
Eso de que sea una comunidad voluntaria... al final pasara como con todo lo que es voluntario, la gente hara mal uso de ello y lo peor, las empresas tambien para quitarse/hacerse competencia.
un saludo