In addition to PIMS-X having backwards compatibilities with the ExecUtron Internet Commerce Module (ICM), PIMS-X also has a host of XML WEB Services to allow PIMS-X to link to any type of WEB Site available.
This includes no less than automatic Invoice downloading/processing as well as a variety of SOAP calls that can retrieve current Customer and Inventory data directly to your WEB Site. This interaction can keep your Site dynamic and always up-to-date. For more information on PIMS-X WEB Services, download this document and examples:

PIMS-X WEB Services
For those who want a more complete package that is ready to go with much less effort, you can create your entire eCommerce WEB Site with Shopsite Pro and host it through Lexiconn Hosting Services. The combination of the two provides a great eCommerce solution that PIMS-X can connect to automatically with no additional programming on your part. Invoices can automatically be downloaded into PIMS-X and are ready to be processed right away. Inventory changes can also be reflected on your Shopsite Pro WEB Site automatically. This is the best eCommerce solution for PIMS-X.
For complete instructions on interfacing PIMS-X with ShopSite, read this PIMS-X Tech Note:

PIMS-X ShopSite Setup
Contact Lexiconn for complete Shopsite Pro packages including hosting, support, and many available options found no where else!