Access database help needed

This work is for an Access database issue. I have a database in Access with 600,000 business names, addresses, phone numbers, email addresses, etc. My problem is there are several duplicates in the database that I need to pull out, and I am looking for an automated way to do this as much as possible. I do not want to go through all 600,000 records to find duplicates. Some examples of records are as follows: Smith Construction Co Smith Construction Co Inc Smith Constructoin Co Inc Smith Constr Co Inc John Smith Construction Co - All with similar addresses - Then there are instances such as: Smith Construction Co - 1234 Street Name, Dallas, TX A J Smith COnstruction Co - 5678 Street Name, Houston, TX A J Contruction Co - 1234 Street Name, Dallas, TX Smith Construction Co Inc - 8888 Street Name, New York, NY I need to have a Macro/Module written that can compare the records and update another field with an "X" if there is a good chance that record is a duplicate. That way I can go back through and filter out all the "X"'s to manually verify that they are indeed duplicates. NOTE: A FIND DUPLICATES QUERY WILL NOT WORK AS THE RECORDS ARE NOT EXACT DUPLICATES. I need something perhaps that checks character per character and calculates a frequency of similarity, which would make it appear to be a duplicate. If you need any more information, please let me know. I will attach a small sample of the database I am working with ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Installation package that will install the software (in ready-to-run condition) on the platform(s) specified in this bid request. 3) Complete ownership and distribution copyrights to all work purchased. ## Platform Access 97 preferably