Sorry I made a mistake the error is for the following line:-
Set objFSO = Server.CreateObject("Scripting.FileSystemObject")
This is the File System Object (FSO) which is used to display the list of uploaded files on your server in the RTE.
The File System Object is built in to Windows since back in the NT4 days. As you are getting the error on this line it looks like the File System Object has been disabled on your server or could be that you are using a 64 bit OS.
You should also check that the application pool for the website is running in 32 bit mode as many ASP components will not work in 64 bit mode.
For better compatibility, memory, and performance, Microsoft actually advise to use 32 bit mode for application pools.