From: Computerpilot on 10/16/2002
For the first two error messages that you are getting, you will need to reinstall Yahoo Messanger. If you are not using the server, then simply uninstall and you will stop getting the error messages.
To uninstall a program, go to your Control Panel (Start, Settings, Control Panel). Select the 'Add/Remove Programs' icon. Find Yahoo Messanger on the list and click the 'remove' button on the bottom. That should do it.
For your last problem, well, that is some old version of Dr. Solomon's virus scanning software. I would uninstall this software as well and go get Norton's Antivirus 2003 and install that on your computer. These days, you need to have a very good virus solution. Norton gives you a full year of virus updates for the price you pay for the software. After that, it is an additional $9 a year for virus updates. However, this is only for virus updates. The software will never stop detecting viruses. But you want to have the most up-to-date virus definitions to combat new viruses that come out everyday (don't believe me, do a search on 'Bugabear' in your Internet Browser).
Hope this helps. Feel free to post back.