Thanks for your help. What happened is that McAfee, my computer protector, deletes anything that I block (I have to change that setting). Because I just had a trojan, a program I had never seen asking for permission before was asking for access to the computer; hence, it was blocked and susequently erased. Well, that .dll file was apparently needed. Because it was deleted, my internet will no longer run on that profile. I created another profile to use the internet off of. The IT guy at work is going to help me with my computer. Until it is fixed, and secure, I am mostly on the internet at work when I can sneak it in. LOL!
Anyway, thanks again.