runll. error loading

amandahayes--Perhaps of help
http://forums.businessgreen.com/thread.jspa?messageID=1063973
If you do not know how to use MSCONFIG, you click Start|Run|type MSCONFIG |OK|Startup tab.  Look for any item in the Command column associated with MyWebSearch and uncheck the box to the left.  Apply|OK.  (When you reboot, you will get an entirely unnecessary message.  Just check the box at the bottom left and then OK.)
However MyWebSearch is generally regarded as malware.  You may want to uninstall it.
http://www.pchell.com/support/mywebsearch.shtml
When you do, you will probably no longer get that message.

http://www.malwarebytes.com run that and see if it will help fix the error, do that along with jcimarron's suggestions.

amandahayes,
Malwarebytes' Anti-Malware should resolve your problem(as recommended by Blizz127), and will reinforce jcimarron's suggestion.

Alternatively you can download from here.  Then update it:
http://www.malwarebytes.org/mbam.php
When updated, reboot into Safe Mode by selecting F8 at bootup & run a scan.

Tutorial available, if you require it >
http://www.bleepingcomputer.com/forums/lofiversion/index.php/t169669.html

[This post is a slightly modified version of the post that is in your duplicate thread]

Ok I have tried the things you've suggested and it has not worked could you give me any more suggestions? Thank you.

You could try Superantispyware:                        
http://www.superantispyware.com/

Also Trend Micro's free online virus scanner:            
http://housecall.trendmicro.com/uk/
Ideal for scanning online, using "Safe Mode with networking".      

If you followed jcimarron's suggestions & still have a problem, suggest you install and run Trend HijackThis 2.02:
http://majorgeeks.com/Trend_Micro_HijackThis_d5554.html

Create a folder where you would like the HijackThis file to reside and run it from there, not from the Desktop or a temporary folder.
Run the scan & save the logfile.  Then click the "Attach Code Snippet" box, paste the logfile into the "Code Snippet" page and then we can get it analysed.   From the analysis we can hopefully choose the appropriate removal tool.

What am I trying to remove if the error code is saying that it is not found? This is what I am having a problem with, I am tring to remove something that is not there. But the error is popping up so what else could the problem be?

amandahayes--Malware often popsup message about files not on the hard drive.  
However run a Search for MP3PLUGIN.DLL .  If you find it, where did you find it?
Did you try the suggestions in my first post?  Do you find MyWebSearch in Control Panel|Add/Remove?
I assume you have run the antimalware programs suggested.  Definitely run HiJackThis.  Post the log here if you need help in interpretation.

If we can view the logfile as discussed, we hope to see entries resembling these.  They can then be 'Fixed' >>

O4 - HKLM\..\Run: [MyWebSearch Plugin] rundll32 C:\PROGRA~1\MYWEBS~1\bar\1.bin\M3PLUGIN.DLL,UPF
O23 - Service: My Web Search Service (MyWebSearchService) - Unknown owner - C:\PROGRA~1\MYWEBS~1\bar\1.bin\mwssvc.exe (file missing)