Hi, LaDonna.
This sounds like a job for...<tada!>...System File Checker!!!
At the Run prompt, type: sfc /scannow
SFC will compare each WinXP operating system file with the "known good" copy
kept in your on-disk cache and replace any missing or damaged ones. Have
your WinXP CD-ROM handy; SFC probably will need to see that.
I never heard of unicows.dll until you mentioned it, and I suspected
malware. But, I have a copy in my Windows\System32 folder. Its Properties
screen says it is a genuine Microsoft file: "Win9x Supplemental Unicode
eXtension". It apparently came from some recent update, because the file
date is 1/7/2004.
If your computer is up-to-date with all Windows Updates, SFC should find and
fix the problem. If not, then the obvious solution is to visit Windows
Update.
RC