The 184.108.40.206 version of CustomerRegister is available as a free download on our website. The actual developer of the free program is WorksheetSoftware.com. The program is included in Communication Tools.
From the developer:
Free and simple customer register software with customizable data fields and statistics module. You can attach files to the customer records and the customer data can be exported to many different file formats such as CSV, XLS or PDF. External data can be imported in CSV format. The software is totally free, without any limitations.
You may want to check out more software, such as MailFrontier Desktop, Chaos Intellect or RapidCheck, which might be related to CustomerRegister.