Internet Payment Invoicing System is a multi-platform compatible script designed for merchants with a WorldPay account, and connects directly to Worldpay to enable easy online payment. We are also able to supply a version for use with other payment systems - please contact us. The idea is that you send your invoice in the normal way, as a Word Document, or in the post, and accompany the invoice with an email containing a link to pay online. The entire payment screens are pre-populated for easy payment of your invoice, including the customer details. Using a single-page control panel, you can set up an online payment, and an encrypted link is created similar to the sample one below. You can also set up an online payment directly from Microsoft Outlook and from the SalesForce CRM console.