You can download and install the arcmod7000.dll if you are facing errors such as:
The program can't start because arcmod7000.dll is missing from your computer. Try reinstalling the program to fix this problem.
There was a problem starting arcmod7000.dll. The specified module could not be found
Error loading arcmod7000.dll. The specified module could not be found.
arcmod7000.dll is either not designed to run on Windows or it contains an error.
arcmod7000.dll is not designed to run on this version of Windows.
How to Install
Download and copy over arcmod7000.dll to the C:/Windows/, C:/Windows/System32,C:/Windows/System/, and C:/Windows/SysWOW64 directories.
Also copy it to the directory where your program is installed. If the program still shows the error, you might have to search on Google on where to copy over the arcmod7000.dll file.