I suspect the "missing export" is actually MSVCRT.DLL.
For Windows 2000, extract a new copy of the MSVCP60.DLL file from the Support.CAB file in the Support\Tools folder.
For Windows ME, extract new copies of the MSVCP60.DLL and MSVCRT.DLL files from the Win_13.CAB file on the Windows CD, or in the Windows\Options\Install folder.
MSVCP60.DLL is also included with Windows Media Player 7.x, so reinstalling the program may resolve the problem. This appears to be the only option under Windows 98.
For Windows 95/98/NT4/2000, also install this
Library Update.
This will hopefully resolve the problem. The Norton Antivirus error might be unrelated, however, and you may need to reinstall that program.
In future, Heather, always mention the versions of Windows and Internet Explorer which you're running, as well as the version of any program which is associated with an error.
-- TGL