[shupinga]

I have AVG on my computer and the past few times I've run it, it shows a change in the Windows\system32 functions. I recently just put Service Pack 2 on it as well as the other updates and am unsure if the change is from this. However, when I run Hijackthis, this line appears:
O20 - Winlogon Notify: WRNotifier - WRLogonNTF.dll (file missing)
I'm hoping that you can provide some assistince into whats going on and if I have a virus or something else on the computer. Thanks for any help you can provide and here's the complete Hijackthis log:

Logfile of HijackThis v1.99.1
Scan saved at 10:43:27 PM, on 1/20/2006
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\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
C:\WINDOWS\System32\HPZipm12.exe
C:\windows\system\hpsysdrv.exe
C:\HP\KBD\KBD.EXE
C:\Program Files\Lithic\HalfMoon\halfmoon.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgemc.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe
C:\Program Files\Google\Google Desktop Search\GoogleDesktop.exe
C:\WINDOWS\SYSTEM32\ZoneLabs\vsmon.exe
C:\Program Files\Google\Google Desktop Search\GoogleDesktopIndex.exe
C:\Program Files\Google\Google Desktop Search\GoogleDesktopCrawl.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\Adobe\Acrobat 5.0\Reader\AcroRd32.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgwb.dat
C:\DOCUME~1\Owner\LOCALS~1\Temp\Temporary Directory 1 for

hijackthis.zip\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page =

http://us3.hpwis.com/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL =

http://us3.hpwis.com/
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page =

http://us3.hpwis.com/
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3}

- C:\Program Files\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} -

C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: (no name) - {5C8B2A36-3DB1-42A4-A3CB-D426709BBFEB} - (no

file)
O4 - HKLM\..\Run: [hpsysdrv] c:\windows\system\hpsysdrv.exe
O4 - HKLM\..\Run: [KBD] C:\HP\KBD\KBD.EXE
O4 - HKLM\..\Run: [Recguard] C:\WINDOWS\SMINST\RECGUARD.EXE
O4 - HKLM\..\Run: [HotKeysCmds] C:\WINDOWS\System32\hkcmd.exe
O4 - HKLM\..\Run: [PS2] C:\WINDOWS\system32\ps2.exe
O4 - HKLM\..\Run: [HalfMoonAutoStart] C:\Program

Files\Lithic\HalfMoon\halfmoon.exe -minimized
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe

/STARTUP
O4 - HKLM\..\Run: [AVG7_EMC] C:\PROGRA~1\Grisoft\AVGFRE~1\avgemc.exe
O4 - HKLM\..\Run: [Zone Labs Client] C:\Program Files\Zone

Labs\ZoneAlarm\zlclient.exe
O4 - HKCU\..\Run: [Google Desktop Search] "C:\Program

Files\Google\Google Desktop Search\GoogleDesktop.exe" /startup
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel

present
O8 - Extra context menu item: E&xport to Microsoft Excel -

res://C:\PROGRA~1\MI1933~1\Office10\EXCEL.EXE/3000
O9 - Extra button: AIM - {AC9E2541-2814-11d5-BC6D-00B0D0A1DE45} -

C:\Program Files\AIM\aim.exe
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} -

C:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger -

{FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program

Files\Messenger\msmsgs.exe
O12 - Plugin for .spop: C:\Program Files\Internet

Explorer\Plugins\NPDocBox.dll
O20 - Winlogon Notify: WRNotifier - WRLogonNTF.dll (file missing)
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: Kodak Camera Connection Software (KodakCCS) - Eastman

Kodak Company - C:\WINDOWS\system32\drivers\KodakCCS.exe
O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\System32\HPZipm12.exe
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone Labs, LLC -

C:\WINDOWS\SYSTEM32\ZoneLabs\vsmon.exe