Unwanted IE events caused by third party

[Guest]

Someone has caused either by an email or from a website or by hacking, unwanted events such as IE icons on desktop, change of default home address, and unwanted menu options on right click. All within IE
These reappear on reboot (even when not on line)
Where might I find the instructions that are causing this.
I have searched through start-up and registry to the best of my ability
OS is XP Pr

Thanks if you can help

 

[Malke]

Someone has caused either by an email or from a website or by hacking,
unwanted events such as IE icons on desktop, change of default home
address, and unwanted menu options on right click. All within IE.
These reappear on reboot (even when not on line). Where might I find
the instructions that are causing this.? I have searched through
start-up and registry to the best of my ability. OS is XP Pro

Thanks if you can help

What does a scan with a current antivirus program (meaning a version not
earlier than 2002 and using updated virus definitions) show? Also,
remove spyware with Spybot Search & Destroy from www.security.kolla.de
and Ad-aware from www.lavasoftusa.com. Be sure to update these programs
before running them. It is best to run antivirus and spyware removal
tools in Safe Mode.

Malke