DVI is a software package that takes a Microsoft Word document and converts that document into a code then you send it, via email, using Microsoft Outlook or any other Email program, to another party. That party then uses DVI to decode that converted document back into a readable Microsoft Word document. Alternativety, the document can be safely kept on your computer and unreadable to anyone other than you. DVI, unlike other encryption software, for each client is 100% different than any of our other clients. That's security no one offers but DVI. When you purchase DVI you create the encryption code. With other stealth software they create the code and your security not only resides in their hands but anyone else who buys that software. With DVI you're in command. not the software company or your competition who might also have that software. DVI is a patented methodology that keeps your electronic documents, company papers,and allows the sending of secure word documents and only you can read those documents.