Validate the zip file before completing the search
We've noticed that if the process is stopped while a compression is running, it corrupts the final zip file (as it was not able to complete saving to it when stopped).
We should have it validate that it is a valid zip file that contains only 1-3 sub-directories (TXT Only, TXT, HTML) before we remove the uncompressed files.
If a corrupt scenario occurs -- email the admin instead of the user.