The Official To Do List:

Allow the user to choose whether to compare all of the new documents with each other or just with the old documents.
Save the pre-digested versions of documents so that they don't have to be redigested every time you run WCopyfind.
Make the report columns more Excel-friendly.
Keep the matching reports separately, so that they don't overwrite one another.
Add an option to remove boilerplate text from the comparison.
Fix bug in "Load from File" so that it doesn't hang the program or otherwise misbehave.
Make a downloadable (pdf) version of the instructions.
Make a command-line version of the programs.
Adapt the program to handle more sophisticated character sets such as UTF-8