If you missed the the warning not to patch, there may still be hope left. The conditions are:
A) Your windows edition has the option for a "System Restore"
B) You haven't installed anything on your computer recently that you must have/simply can't get again.
C) You can follow some simple directions
If any of the above are stopping you, I apologize for wasting your time. HOWEVER, if they are not, listen up.
Go into your Start Menu. Go to your "Programs Folder>Accessories>System Tools>System Restore. Once System Restore is opened, make sure "Restore my computer to an earlier time" is selected and click Next. Scan the convenient calender to a date before the patch, closest to today. (Luckily EQ hasn't been patched in a while.) Pick your date, click Next, Next, and you're home free. It'll restore to your chosen date, and restart your computer for you. Feels just like time-travel.
Also, at any point that you are unhappy with your system restoration, you may enter the program once again, and undo the restore. Yes, computers are THAT user friendly.
Hope this helps at least one person! Toodles!