Specs:
Windows XP home edition
cersion 2002 service pack 2

Packard bell computer/ intel R
Celeron (R) CPU 2.93ghz
192 mb Ram
Physical address extension

I'll list a few of the things that have been to my pc and internet, I don't know anything about viruses so maybe somone can get something from them. I run Spybot S&D and Adaware alot, and I also use Norton But these don't help.

1. Explorer will suddenly stop working, giving me a page not found for everything.
2. Explorer will stop working and my internet connection will completely switch off - the usb light on my router also goes off - forcing me to reset the cpu and my internet connection.
3. Downloads will suddenly stop, mostly with limewire - all the downloads would just fail and SOMETIMES my save folder is erased.
4. PC will go really slow when anything else is open, this only started to happen recently.
5. An end program now message about something called ccAp often appears when I turn off the cpu. I don't know what that is, so I imagine it is a virus.
6. Often, there is a program in the task bar called active movie window I can't get rid of it, nor can I click on it to open it.
7. PC will go slow for no reason.
8. Computer would sometimes reset itself for no reason.
9. Sometimes I get an update message from windows telling me it will reset the pc in 60 seconds to install some files. Even after letting it go through it has come up again.
10. Some file are highlighted with blue writing.
11. Sometimes when I rename files I get a message saying something like: changing the name or LOCATION of this file will stop it from working. When I do the file turns into one of those files that lead you to a selection list of programs. I forget what they're called.
12. Often when I'm browsing the internet my cpu will just go really slow and a blank JPEG image will open up on screen. I know this is a virus but what kind of damage can it do? And can I use the usual programs to get rid of it?

These are a few I can remember. Sorry if it's too much.

Thanks in advance A clean install of Windows will fix everything for you.Well CCAPP is an startup item that is associated with the Norton antivirus and Internet Security suite.  So ccAPP is not a virus but a part of Norton's security software. For the rest of the problems, I would have to say EITHER try restoring to a previous point by using the restore console for XP or I would recommend doing a total reformat.Download, install & update...
CLEANUP
Ccleaner
(During install, uncheck the Yahoo Toolbar option)
(After install, set Options>Advanced> 'Uncheck the 48 hour box')
ANTI SPYWARE
Ad-Aware
Spybot S&D
ANTI VIRUS
AVG Free (After install, set Options to 'scan all files')
ANTI TROJAN
EWIDO (W2k & XP Only)
      and/or
a-squared (a² Winall)

Turn off System Restore if applicable. (ME & XP users)

Run Ccleaner
Run Ad-Aware
Run Spybot
Run AVG Free
Run Ewido and/or a-squared (a²)
Re-start in Safe Mode
Re-run AVG Free

Re-start in Normal Mode
Turn on System Restore if applicable. (ME & XP users)Another good antivirus solution that is good to install especially to prevent future occurances like this would be Avast Home Edition, free and include several nifty shields such as resident shield, mail shield, p2p and 4 other shields. The only negative is the scanning rate is a little low than others in what is found regarding trojans and some viruses.