First download the file by clicking on it and save it to a directory on your hard drive. Find the file that you downloaded by clicking on AnyBk557.exe , then click on OK to run the file. The file will automatically unzip itself and the set-up program will start. The zip file, mentioned above, is a standard zip file. To unzip it, use one of the zip programs available on the web.
More information is available from the Readme.txt file.
Additionally, I've enclosed sample invoices, customers and products that will be helpful as you evaluate the program. Additionally, they are re-tested and thoroughly scanned for viruses by the download sites, mentioned above. Lately, some programmers have been inserting code in software which surreptitiously provides information to commercial sites through Internet connections. I find such practices repugnant and unethical. You can be assured that AnyBook is complete free of any such code.