Program Requirements

Hard disk with at least 15 MB available.

Screen resolution of 800 x 600 or better.

Microsoft Windows Vista, Windows XP or Windows 7 (32-bit or 64-bit).

Supports Windows XP Home and Professional versions, including 32-bit and 64-bit.
Supports Windows Vista Home, Business and Ultimate versions, including 32-bit and 64-bit
Supports Windows 7 Home, Professional and Ultimate versions, including 32-bit and 64-bit
Portuguese Windows is not supported.
EssentialFax will not install or run on "server" operating systems (i.e. Windows 2003 Server)

A standard dialup-type faxmodem, and standard telephone connection

Please read this if you using a non-standard telephone service, such as VOIP, as this can cause problems with faxing.
Please read this if you are using DSL or CABLE
The faxmodem must be a local faxmodem, not a shared network faxmodem