According to AVG Free edition, I have a Virus. This seems logical, as my computer has been acting very slow. According to AVG, the offending file is "javainstaller.jar-5aa0b436-550ca9f9.zip". Here is my complete Hijack This log:
Logfile of HijackThis v1.99.1
Scan saved at 9:02:50 PM, on 1/26/2006
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\TGTSoft\StyleXP\StyleXPService.exe
C:\WINDOWS\system32\spoolsv.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
C:\WINDOWS\system32\cisvc.exe
C:\Program Files\ewido anti-malware\ewidoctrl.exe
C:\Program Files\Kerio\Personal Firewall 4\kpf4ss.exe
C:\Program Files\Common Files\New Boundary\PrismXL\PRISMXL.SYS
C:\WINDOWS\system32\tcpsvcs.exe
C:\WINDOWS\System32\snmp.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Kerio\Personal Firewall 4\kpf4gui.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Kerio\Personal Firewall 4\kpf4gui.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\Program Files\Digital Media Reader\shwiconem.exe
C:\Program Files\Microsoft AntiSpyware\gcasServ.exe
C:\Program Files\Microsoft AntiSpyware\gcasDtServ.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe
C:\Program Files\Common Files\Scansoft Shared\SSBkgdUpdate\SSBkgdupdate.exe
C:\program files\steam\steam.exe
C:\Program Files\Common Files\InstallShield\UpdateService\agent.exe
C:\Program Files\Logitech\SetPoint\SetPoint.exe
C:\Program Files\Yahoo!\WidgetEngine\YahooWidgetEngine.exe
C:\Program Files\Common Files\Logitech\KHAL\KHALMNPR.EXE
C:\Program Files\Yahoo!\WidgetEngine\YahooWidgetEngine.exe
C:\Program Files\Yahoo!\WidgetEngine\YahooWidgetEngine.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\Common Files\Logitech\WebColct\WebColct.exe
C:\Program Files\HijackThis\HijackThis.exe
C:\Program Files\Yahoo!\WidgetEngine\UnixUtils\bin\zsh.exe
C:\WINDOWS\system32\netstat.EXE

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.emachines.com/
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://www.emachines.com/
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Int ernet Settings,ProxyOverride = localhost
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O4 - HKLM\..\Run: [ATIPTA] C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [Recguard] %WINDIR%\SMINST\RECGUARD.EXE
O4 - HKLM\..\Run: [Reminder] %WINDIR%\Creator\Remind_XP.exe
O4 - HKLM\..\Run: [SunKistEM] C:\Program Files\Digital Media Reader\shwiconem.exe
O4 - HKLM\..\Run: [gcasServ] "C:\Program Files\Microsoft AntiSpyware\gcasServ.exe"
O4 - HKLM\..\Run: [Logitech Hardware Abstraction Layer] KHALMNPR.EXE
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe /STARTUP
O4 - HKLM\..\Run: [SSBkgdUpdate] C:\Program Files\Common Files\Scansoft Shared\SSBkgdUpdate\SSBkgdupdate.exe -Embedding -boot
O4 - HKCU\..\Run: [Steam] "c:\program files\steam\steam.exe" -silent
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [STYLEXP] C:\Program Files\TGTSoft\StyleXP\StyleXP.exe -Hide
O4 - Startup: Yahoo! Widget Engine.lnk = C:\Program Files\Yahoo!\WidgetEngine\YahooWidgetEngine.exe
O4 - Global Startup: Logitech Desktop Messenger.lnk = C:\Program Files\Logitech\Desktop Messenger\8876480\Program\LDMConf.exe
O4 - Global Startup: Logitech SetPoint.lnk = C:\Program Files\Logitech\SetPoint\SetPoint.exe
O8 - Extra context menu item: &AOL Toolbar search - res://C:\Program Files\AOL Toolbar\toolbar.dll/SEARCH.HTML
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=39204
O20 - Winlogon Notify: WRNotifier - WRLogonNTF.dll (file missing)
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: ATI Smart - Unknown owner - C:\WINDOWS\system32\ati2sgag.exe
O23 - Service: AVG7 Alert Manager Server (Avg7Alrt) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
O23 - Service: AVG7 Update Service (Avg7UpdSvc) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
O23 - Service: ewido security suite control - ewido networks - C:\Program Files\ewido anti-malware\ewidoctrl.exe
O23 - Service: Sony SPTI Service for DVE (ICDSPTSV) - Sony Corporation - C:\WINDOWS\system32\IcdSptSv.exe
O23 - Service: Kerio Personal Firewall 4 (KPF4) - Kerio Technologies - C:\Program Files\Kerio\Personal Firewall 4\kpf4ss.exe
O23 - Service: PrismXL - New Boundary Technologies, Inc. - C:\Program Files\Common Files\New Boundary\PrismXL\PRISMXL.SYS
O23 - Service: StyleXPService - Unknown owner - C:\Program Files\TGTSoft\StyleXP\StyleXPService.exe



Please help ASAP! My computer is very important to me, and I do not have ANY backup of my files whatsoever!

Have you tried deleting the file using AVG or manually?

Always, always, always, do I need to go on. BACKUP FILES

__________________
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I'm a certified tech and have a good deal of knowledge of antivirus and firewalls. I've found to insytall avast home (a free Program found at Free antivirus - avast! 4 Home Edition Download ) It has a pre-boot scan option that scans your computer before any thing is loaded into memory. I have found this program Is all I've used. Zonealarm used to provide a free firewall also but I don't think it's available for free anymore. Anyway Between this and the online scans is the simplest and easiest way to protect and service your pc. Be sure to save the set-up package and then install so you can always uninstall and reinstall when you run into this problem.