Hi Ken,
There are number of ERP packages that use PxPlus, but I don't want to show any favoritism, so I will leave it up to them to either contact you directly or perhaps post their contact information here for anybody else interested.
Now, if you are interested in developing your own application, you might want to have a look at our Webster+ "Testdrive" demo system (see
https://forum1.pvxplus.com/index.php?topic=870.msg2914#msg2914).
While not a full ERP system, it has many of the components of one and we would be glad to provide the code to you or anybody else interested.
As it is based on Webster+ it is designed to run on the Web and therefore can be run on any browser. The host can be Windows, Linux, Mac or AIX -- heck it will even run on a Raspberry Pi if you are looking to keep cost down.
While we did our best to make sure all the application logic is correct, we make no guarantees on the coding nor do we provide support for the application code.
Fundamentally our goal with the application was to make sure the features we added to Webster+ both worked and were suitable to address the various needs of application development and design. As such we included Smart queries, charts, grids, file/image uploads and downloads, even use of the Report Writer.
With the release of v19, we will be updating the Testdrive application to include some of the newer Webster+ features such as Dynamic Wiki creation for online documentation, the Google Maps interface, and more use of the File Maintenance generator to build additional screens.
Anyway, it might be something to consider or, if nothing else, give you some ideas as to how to add Web functionality, enhancing the PxPlus application you currently work with.