fix computer errors

first off usually anything .dll is connected to your registry and you do not want to delete you can help it.
rest could be virus true, so your not saying what you use for protection, so here is what I put on all computers I work on
SIMPLE STEPS TO
DOWNLOADING
VIRUS & SPYWARE PROTECTION
AVG FOR VIRUS PROTECTION
AVG anti FOR SPYWARE, MALWARE, ROOTKITS
BOTH FOUND AT http://www.grifsoft.com or go to yahoo and enter in search box – AVGfree and the first or 1. Item that is listed is the web site for you to go to.
Once there you will see advertisement for both free & paid plus updates, at the left upper side you’ll see download for free basic protection, click the orange download bar and this will get the free program for AVG virus
Under that picture you will see the words AVG anti-spy ware Free edition the writing is in orange, click it for your download of AVG anti spy ware program
If for any reason someone just needs the updates to the current program and cannot download on their machine, a person a look to bottom right corner of page and find them, put on jump drive and just plug in and AVG will find it when you click update on the program. (this is just for the virus program)
Now for your next layer of protection download the following also but remember you can only run one program at a time, but each of these will fine things the other didn’t.
Spybot search & destroy found at www.safer-networking.org
Superantispyware found at http://superantispyware.com
And finally go to this web site for this program to clean up your internet history, cookies, browser history, recycle bin, IE Explorer, etc all the boxes can be preset and basically in 4 steps you can clean computer. It does so well that disc clean usually only will find 32-100MB after its donehttp://www.snapfiles.com go to the freeware section, look for Internet Cleanup, then look for the software called IE Privacy Keeper
Last but not least do Defrag at least 2 times in a row even if program says not needed, as XP Defrag program isn’t the best and needs to be run more often.
And also go to http://www.glaryulitilies.com for free registry repair programs or to http://www.snapfiles.com and to their freeware section to find them also.