I have had the same problem and applied the same fix. It works. . . ONCE. Then the next time I try to email someone using an email address on a website, I get the same message that WLDCore.dll is missing. HOW DOES ONE PREVENT THE SYSTEM FROM DELETING THE FILES AT SOME LATER TIME? Is there a way to protect the files so NOTHING except the Administrator can delete them?
BTW, it appears that the system only deletes WLDLog.dll; leaves the WLDCore.dll intact.