Hi there.
Spam, spyware and rootkits can turn a nice sunday into a living nightmare once they get into your computer. But they are not all impossible to prevent and clean out. There are a number of ways to do this. Though I'm not that familiar with BOClean, I've used spybot with great success in the past.
If BOClean doesn't do what you want, try one of the many alternatives out there and see what suits your need

Report back if you're still having problems.
Good luck!