Here is a quote from their faq page
http://www.adcmaps.com/cd_faq.htm Quote:
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If you want the full use of ADC Maps on CD, then it is recommended that you have ArcView GIS. This allows you to not only look up features and addresses, but will also allow you to add multiple layers of data and images (i.e. Aerial Photography, graphics, text, etc.).
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Sounds like ArcView might be worth looking into in this case?