From PC Shareware:
Locates Canadian postal codes that are within close proximity of a specified postal code. All you do is type in a postal code, specify the radius distance, and within seconds, a list of all postal codes that fall within that radius is displayed. The Postal Code Distance Wizard permits you to export or copy the results to either a comma separated value (CSV) file, or to the Windows Clipboard. Includes every 6 digit postal code in Canada.