Hello All:
I am having problems with Explorer,every now and then when I am trying to open up a program this error message appears on the screen and my desktop freezes up,I have to reboot to get bk my desktop????
Here is the error message, heading says explorer----- this program has performed an illegal operation and will be shut down----explorer caused an invalid page fault in module <unknown> at0000: old74e19 all help will be appreciated thanks
del_bert

Welcome to SAF, tal_bert.

That message is typical of spyware/adware infections. Follow the instructions here to post a HijackThis log.

Here is the Hijack log as you requested.
Logfile of HijackThis v1.99.1
Scan saved at 9:15:00 AM, on 5/2/05
Platform: Windows 98 SE (Win9x 4.10.2222A)
MSIE: Internet Explorer v6.00 (6.00.2600.0000)

Running processes:
C:\WINDOWS\SYSTEM\KERNEL32.DLL
C:\WINDOWS\SYSTEM\MSGSRV32.EXE
C:\WINDOWS\SYSTEM\MPREXE.EXE
C:\WINDOWS\SYSTEM\mmtask.tsk
C:\WINDOWS\SYSTEM\WINMODEM.101\wmexe.exe
C:\PROGRAM FILES\COMMON FILES\ACRONIS\SCHEDULE2\SCHEDUL2.EXE
C:\WINDOWS\EXPLORER.EXE
C:\WINDOWS\SYSTEM\SYSTRAY.EXE
C:\PROGRAM FILES\BROWSER MOUSE\BROWSER MOUSE\1.0\LWBWHEEL.EXE
C:\WINDOWS\SYSTEM\3CMLNKW.EXE
C:\PROGRAM FILES\NORTON ANTIVIRUS\NAVAPW32.EXE
C:\WINDOWS\SYSTEM\STIMON.EXE
C:\USBSTORAGE\USBDETECTOR.EXE
C:\PROGRAM FILES\IOMEGA HOTBURN PRO\AUTOLAUNCH.EXE
C:\PROGRAM FILES\ACRONIS\TRUEIMAGE\TRUEIMAGEMONITOR.EXE
C:\PROGRAM FILES\COMMON FILES\ACRONIS\SCHEDULE2\SCHEDHLP.EXE
C:\WINDOWS\TPPALDR.EXE
C:\PROGRAM FILES\IOMEGA\TOOLS\IMGICON.EXE
C:\WINDOWS\SYSTEM\WMIEXE.EXE
C:\PROGRAM FILES\INTERNET EXPLORER\IEXPLORE.EXE
C:\WINDOWS\SYSTEM\RNAAPP.EXE
C:\WINDOWS\SYSTEM\TAPISRV.EXE
C:\WINDOWS\SYSTEM\SPOOL32.EXE
C:\WINDOWS\SYSTEM\HPZSTATX.EXE
C:\HIJACK\HIJACKTHIS.EXE

R1 - HKCU\Software\Microsoft\Internet Explorer,SearchURL = http://letgohome.com/sp.htm?id=36381
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://letgohome.com/sp.htm?id=36381
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://letgohome.com/sp.htm?id=36381
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://letgohome.com/hp.htm?id=36381
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = C:\Program Files\Copernic 2001 Plus\Search Bar.htm
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://letgohome.com/sp.htm?id=36381
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Advanced Internet Services Explorer
O2 - BHO: (no name) - {467FAEB2-5F5B-4c81-BAE0-2A4752CA7F4E} - C:\WINDOWS\SYSTEM\UK3L8J~1.DLL
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - C:\Program Files\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\SYSTEM\MSDXM.OCX
O4 - HKLM\..\Run: [ScanRegistry] C:\WINDOWS\scanregw.exe /autorun
O4 - HKLM\..\Run: [SystemTray] SysTray.Exe
O4 - HKLM\..\Run: [LoadPowerProfile] Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\Run: [LWBMOUSE] C:\Program Files\Browser Mouse\Browser Mouse\1.0\lwbwheel.exe
O4 - HKLM\..\Run: [3Cmlink] C:\WINDOWS\SYSTEM\3cmlnkW.exe
O4 - HKLM\..\Run: [NAV Agent] C:\PROGRA~1\NORTON~1\NAVAPW32.EXE
O4 - HKLM\..\Run: [Tweak UI] RUNDLL32.EXE TWEAKUI.CPL,TweakMeUp
O4 - HKLM\..\Run: [StillImageMonitor] C:\WINDOWS\SYSTEM\STIMON.EXE
O4 - HKLM\..\Run: [USBDetector] C:\USBStorage\USBDetector.exe
O4 - HKLM\..\Run: [Iomega Automatic Backup 1.0.1] C:\Program Files\Iomega\Iomega Automatic Backup\ibackup.exe
O4 - HKLM\..\Run: [Drag'n'Drop_Autolaunch] "C:\Program Files\Iomega HotBurn Pro\Autolaunch.exe"
O4 - HKLM\..\Run: [Acronis True Image Monitor] "C:\Program Files\Acronis\TrueImage\TrueImageMonitor.exe"
O4 - HKLM\..\Run: [Acronis Scheduler2 Service] "C:\Program Files\Common Files\Acronis\Schedule2\schedhlp.exe"
O4 - HKLM\..\Run: [TPP Auto Loader] C:\WINDOWS\TPPALDR.EXE
O4 - HKLM\..\RunServices: [winmodem] WINMODEM.101\wmexe.exe
O4 - HKLM\..\RunServices: [LoadPowerProfile] Rundll32.exe powrprof.dll,LoadCurrentPwrScheme
O4 - HKLM\..\RunServices: [Acronis Scheduler2 Service] "C:\Program Files\Common Files\Acronis\Schedule2\schedul2.exe"
O4 - Startup: Iomega Startup Options.lnk = C:\Program Files\Iomega\Tools\IMGSTART.EXE
O4 - Startup: IomegaWare.lnk = C:\Program Files\Iomega\Iomegaware\COMMANDER.EXE
O4 - Startup: Iomega Disk Icons.lnk = C:\Program Files\Iomega\Tools\IMGICON.EXE
O4 - Startup: QuikSync.lnk = C:\Program Files\Iomega\QuikSync\QUIKSYNC.EXE
O4 - Startup: Iomega Backup Scheduler.lnk = C:\Program Files\Iomega\Iomega Backup\dtiom98.exe
O4 - Startup: Iomega Product Registration.lnk = C:\Program Files\Iomega\Registration\Register.exe
O8 - Extra context menu item: Search Using Copernic Shopper - C:\PROGRAM FILES\COPERNIC SHOPPER\Web\Find.htm
O8 - Extra context menu item: Search Using Copernic - C:\Program Files\Copernic 2001 Plus\Search Extension.htm
O9 - Extra button: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O9 - Extra 'Tools' menuitem: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm
O9 - Extra button: (no name) - {4B981DDB-ED12-4772-ABF4-76E3C14982E0} - C:\PROGRAM FILES\COPERNIC SHOPPER\COPERNICSHOPPER.EXE
O9 - Extra 'Tools' menuitem: Shop Using Copernic Shopper - {4B981DDB-ED12-4772-ABF4-76E3C14982E0} - C:\PROGRAM FILES\COPERNIC SHOPPER\COPERNICSHOPPER.EXE
O9 - Extra button: Shop - {7149E60F-754A-47EB-8916-F60021678D84} - C:\PROGRAM FILES\COPERNIC SHOPPER\COPERNICSHOPPER.EXE
O9 - Extra button: Translate - {99EFB53C-C965-43CF-9F45-52242D134187} - file://C:\Program Files\Copernic 2001 Plus\Translate.htm
O9 - Extra 'Tools' menuitem: &Translate Using Gist-In-Time - {99EFB53C-C965-43CF-9F45-52242D134187} - file://C:\Program Files\Copernic 2001 Plus\Translate.htm
O9 - Extra button: Copernic - {2A465936-E5F0-11D2-91B5-00104B9C4765} - C:\Program Files\Copernic 2001 Plus\Copernic.exe
O9 - Extra button: (no name) - {2A465934-E5F0-11D2-91B5-00104B9C4765} - C:\Program Files\Copernic 2001 Plus\Copernic.exe
O9 - Extra 'Tools' menuitem: Launch Copernic 2001 - {2A465934-E5F0-11D2-91B5-00104B9C4765} - C:\Program Files\Copernic 2001 Plus\Copernic.exe
O9 - Extra button: Microsoft AntiSpyware helper - {B5FA9048-0F0D-4BD8-8297-7359C101F497} - (no file) (HKCU)
O9 - Extra 'Tools' menuitem: Microsoft AntiSpyware helper - {B5FA9048-0F0D-4BD8-8297-7359C101F497} - (no file) (HKCU)
O12 - Plugin for .bcf: C:\PROGRA~1\INTERN~1\Plugins\NPBelv32.dll
O16 - DPF: {10003000-1000-0000-1000-000000000000} - ms-its:mhtml:file://C:\foo.mht!http://vparivalka.com/G7/chm10.chm::/ieloader.exe
O16 - DPF: {7C559105-9ECF-42B8-B3F7-832E75EDD959} (Installer Class) - http://www.xxxtoolbar.com/ist/softwares/v4...006_regular.cab
O16 - DPF: {11111111-1111-1111-1111-111111111111} - mhtml:file://C:NXSFT.MHT!http://69.50.182.94:80/iex/ofile.exe?url=http://69.50.182.94:80/rdgUS1889.exe
O17 - HKLM\System\CCS\Services\VxD\MSTCP: Domain = sitestar.net
O17 - HKLM\System\CCS\Services\VxD\MSTCP: SearchList = sitestar.net
O17 - HKLM\System\CCS\Services\VxD\MSTCP: NameServer = 205.160.234.1,205.160.234.10

Run a HijackThis scan and put checks in the boxes next to these lines:

R1 - HKCU\Software\Microsoft\Internet Explorer,SearchURL = http://letgohome.com/sp.htm?id=36381

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://letgohome.com/sp.htm?id=36381

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://letgohome.com/sp.htm?id=36381

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://letgohome.com/hp.htm?id=36381

R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://letgohome.com/sp.htm?id=36381

O2 - BHO: (no name) - {467FAEB2-5F5B-4c81-BAE0-2A4752CA7F4E} - C:\WINDOWS\SYSTEM\UK3L8J~1.DLL

O9 - Extra button: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm

O9 - Extra 'Tools' menuitem: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINDOWS\web\related.htm

O16 - DPF: {10003000-1000-0000-1000-000000000000} - ms-its:mhtml:file://C:\foo.mht!http://vparivalka.com/G7/chm10.chm::/ieloader.exe

O16 - DPF: {7C559105-9ECF-42B8-B3F7-832E75EDD959} (Installer Class) - http://www.xxxtoolbar.com/ist/softwares/v4...006_regular.cab

O16 - DPF: {11111111-1111-1111-1111-111111111111} - mhtml:file://C:NXSFT.MHT!http://69.50.182.94:80/iex/ofile.exe?url=http://69.50.182.94:80/rdgUS1889.exe

Close all open windows except HijackThis and click on 'Fix checked'. Reboot and run another scan. Post a fresh log.

I want to thank everyone that helped me with this problem and sorry it took me so long to reply,I was having problem getting my computer to load up,I finally got the problem fixed with the help from you great people.I downloaded a program called Spy Sweeper and it got rid of the Internet highjackers,thanks again----tal_bert