I have the same problem except that my homepage gets set to some other dll file. I tried deleteing that dll file from the windows system folder, but it made a new one with some freaking name and then I deleted that and it made a new one. This is making me nuts.
I tried every common spyware, virus scan and what not.
I tried several times the following
Updated Adaware
Updated Spybot
Virus scan from Trend micro
PestPatrol
Everytime they detect something, delete them and they reappear I don't know what is going on here.
Please give me suggestions where to go from here.
Here's my latest hijackthis log




Logfile of HijackThis v1.97.7
Scan saved at 4:52:04 PM, on 6/15/2004
Platform: Windows XP (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 (6.00.2600.0000)

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:\PROGRA~1\Grisoft\AVG6\avgserv.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\addzp.exe
C:\WINDOWS\system32\crpq32.exe
C:\WINDOWS\Explorer.EXE
C:\PROGRA~1\PESTPA~1\PPControl.exe
C:\PROGRA~1\PESTPA~1\PPMemCheck.exe
C:\PROGRA~1\PESTPA~1\CookiePatrol.exe
C:\PROGRA~1\Grisoft\AVG6\avgcc32.exe
C:\Program Files\Messenger\msmsgs.exe
C:\Program Files\Yahoo!\Messenger\ypager.exe
C:\Program Files\Netscape\Communicator\Program\AIM\aim.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Program Files\Microsoft Office\Office10\WINWORD.EXE
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Documents and Settings\tyagi\Desktop\trash\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = res://C:\WINDOWS\qigyh.dll/sp.html#96676
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = res://qigyh.dll/index.html#96676
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = res://qigyh.dll/index.html#96676
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = res://C:\WINDOWS\qigyh.dll/sp.html#96676
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = res://qigyh.dll/index.html#96676
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = res://C:\WINDOWS\qigyh.dll/sp.html#96676
O2 - BHO: (no name) - {E2D81C8A-0989-432C-6EE3-B33955DCC400} - C:\WINDOWS\sdkpa.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: &Yahoo! Companion - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\ycomp5_3_12_0.dll
O4 - HKLM\..\Run: [Sasser Patch v1 ] msconf.exe
O4 - HKLM\..\Run: [Microsoft Update] xoifzpv.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [Windows Net Cfg ] service.exe
O4 - HKLM\..\Run: [PestPatrol Control Center] c:\PROGRA~1\PESTPA~1\PPControl.exe
O4 - HKLM\..\Run: [PPMemCheck] c:\PROGRA~1\PESTPA~1\PPMemCheck.exe
O4 - HKLM\..\Run: [CookiePatrol] c:\PROGRA~1\PESTPA~1\CookiePatrol.exe
O4 - HKLM\..\Run: [TrojanScanner] C:\Program Files\Trojan Remover\Trjscan.exe
O4 - HKLM\..\Run: [SpyStopper] C:\Program Files\SpyStopper\spystopper.exe
O4 - HKLM\..\Run: [AVG_CC] C:\PROGRA~1\Grisoft\AVG6\avgcc32.exe /STARTUP
O4 - HKLM\..\Run: [crpq32.exe] C:\WINDOWS\system32\crpq32.exe
O4 - HKLM\..\RunServices: [Sasser Patch v1 ] msconf.exe
O4 - HKLM\..\RunServices: [Microsoft Update] xoifzpv.exe
O4 - HKLM\..\RunServices: [Windows Net Cfg ] service.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [Yahoo! Pager] C:\Program Files\Yahoo!\Messenger\ypager.exe -quiet
O4 - HKCU\..\Run: [Sasser Patch v1 ] msconf.exe
O4 - HKCU\..\Run: [Windows Net Cfg ] service.exe
O4 - HKCU\..\Run: [System Update4] c:\docume~1\tyagi\applic~1\logon.exe
O4 - HKCU\..\Run: [AIM] C:\Program Files\Netscape\Communicator\Program\AIM\aim.exe -cnetwait.odl
O4 - HKCU\..\Run: [Microsoft Update] xoifzpv.exe
O4 - Startup: SpywareGuard.lnk = C:\Program Files\SpywareGuard\sgmain.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
O8 - Extra context menu item: Yahoo! Dictionary - file:///C:\Program Files\Yahoo!\Common/ycdict.htm
O8 - Extra context menu item: Yahoo! Search - file:///C:\Program Files\Yahoo!\Common/ycsrch.htm
O9 - Extra button: Messenger (HKLM)
O9 - Extra 'Tools' menuitem: Yahoo! Messenger (HKLM)
O9 - Extra button: AIM (HKLM)
O9 - Extra button: Messenger (HKLM)
O9 - Extra 'Tools' menuitem: Windows Messenger (HKLM)
O16 - DPF: {2C8EEB84-6D60-11D4-BD64-0050048A82BF} (eshare communications NetAgent Customer ActiveX Control version 2) - http://billing-b.mhi.aol.com/netagen.../custappx2.CAB
O16 - DPF: {30528230-99F7-4BB4-88D8-FA1D4F56A2AB} (YInstStarter Class) - http://download.yahoo.com/dl/installs/yinst0401.cab
O16 - DPF: {4A3CF76B-EC7A-405D-A67D-8DC6B52AB35B} (QDiagAOLCCUpdateObj Class) - http://aolcc.aol.com/computercheckup/qdiagcc.cab
O16 - DPF: {4D7F48C0-CB49-4EA6-97D4-04F4EACC2F3B} (InstallShield Setup Player 2K2) - http://www.ipswitch.com/_installs/wsftp_le/setup.exe
O16 - DPF: {74D05D43-3236-11D4-BDCD-00C04F9A3B61} (HouseCall Control) - http://a840.g.akamai.net/7/840/537/2...ll/xscan53.cab
O16 - DPF: {9A9307A0-7DA4-4DAF-B042-5009F29E09E1} (ActiveScan Installer Class) - http://www.pandasoftware.com/activescan/as5/asinst.cab
O16 - DPF: {9F1C11AA-197B-4942-BA54-47A8489BB47F} (Update Class) - http://v4.windowsupdate.microsoft.co...045.9775810185
O16 - DPF: {A17E30C4-A9BA-11D4-8673-60DB54C10000} (YahooYMailTo Class) - http://us.dl1.yimg.com/download.yaho...ymmapi_416.dll
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://download.macromedia.com/pub/s...sh/swflash.cab
O16 - DPF: {F2A84794-EE6D-447B-8C21-3BA1DC77C5B4} (SDKInstall Class) - http://activex.microsoft.com/activex...te/sdkinst.cab

Download dllfix from the following link.
http://tools.zerosrealm.com/dllfix.exe

Create a folder on your desktop, doubleclick on the dllfix and install it into the folder you just created.
1.Run start.bat and press option 1. 'output.txt' will be created in the folder. Post the results of the log here.