DeduplicationWizard is a program for the deduplication of address tables. Deduplication can be done using the telephone number, the email address and the postal address. When the deduplication is based on the postal address - i.e. name, street, postal code and city - the program then also considers typos, inverted words and additions. It is then a fuzzy / error-tolerant deduplication. This, of course, helps to directly reduce costs.