Question: why does my yahoo messenger not working it keeps saying somethig about DLL? 

Answer: You will have to reinstall yahoo messenger. Click on START then click on SETTINGS, select CONTROL PANEL. Then double click on ADD/REMOVE PROGRAMS and then select "YAHOO MESSENGER" from the list and click on REMOVE. This should remove the yahoo messenger completely. Then you can go to yahoo website and download Yahoo messenger again. It should work fine.
This question from the Yahoo Q&A forum is categorized in the topic: Science & Mathematics