Well, Admiralla, I'm glad you've made progress, but in my opinion, leaving SpySweeper disabled is not a good or complete solution. What you describe indicates a problem with resources, most probably the amount of RAM you have installed. XP is resource intensive, if you have less than 512 MB you will have problems similar to what you describe. Looking again at your HijackThis log and given that you have enough RAM, your startups aren't execessive--with the possible exception of Backweb.
Let me put it like this--with 128 MB of RAM you have just enough to run XP. If you try to add any programs, especially those that are CPU intensive and/or run in the background, you'll have problems.
256 MB you can add a few things but that can get used up pretty quick too. Norton AV running in the background will take up a lot of that.
So that's why I was wondering how much RAM you had installed. If less than 512 you need to either install more RAM or look to managing your resources. SpySweeper is more needed than Backweb. So you were right to ask about startups and I'm sorry I didn't address that.
The best information on Startups and how to manage them is this page at Pacman's Portal:http://www.pacs-portal.co.uk/startup_content.php
For first timers there is a relatively new startup manager that gives a description of each startup based on Pacman's database. Much easier to use--other startup managers just list the startup and leave it up to you to do the research on each item. Check out Startup Inspector for Windows.
Now if it's a matter of SpySweeper's monitor hogging all the resources--your CPU usage is below, say, 25% with SS turned off, I would look into getting that straightened out. It may have been damaged by the malware. Try reinstalling. If that doesn't help (and you've got enough RAM
) you might want to contact SpySweeper's support.
I would also strongly suggest that you do that basic maintenance. You could also call it preventative maintenance. It's like changing the oil in a car--don't wait til problems occur before you do it--by then it could be too late. Defragging and Check Disk should be done at least once a month--more often sometimes if you do a lot of installing and uninstalling of programs. Deleting your browser's cache should be done often--some people have IE configured to delete cache every time it's closed. Again, with what you had on your system, I really think you should use System Security Suite.
Hope this helps some more and that you have a great weekend.