Hyperlink in invoice email

To send a hyperlink to the file to your customers in their invoice email, you need to add the full URL to the file into the download field of the product record.

Then you need to enable the following settings in your shop configuration.

Xendoforderhyperlinkemail	Setting this to Yes tells VPCART to add a hyperlink to the download file in the customer invoice email.
Xendoforderhyperlinkfield	This is the name of the field in the products record to look for the hyperlink. Hyperlinks must be the full URL, not a relative URL – for example http://www.vpcart.com/vpasp/file.jpg. Default is orderdownload.