Question about remote user account creation

[stupha]

I'd like to know if the following scenario is possible without major vBulletin hacking:

1. User completes a web form on a non-vBulletin page/system, on a different server to vBulletin.
2. Form submission is processed and data saved, then some system automatically creates a vBulletin user. The trigger will probably be a javascript/ajax call.

I guess that for security purposes, creating users without them using the normal VB registration process is not trivial, but is there a way to achieve this without hard coding within VB?

We cannot capture al the form data within VB (such as additional sign-up fields, for example) as the form submission requires specific processing and pushing through an API into a distinctly seperate system.

The purpose of this requirement is to avoid a user haaving to complete two sign-up processes, one for the form submission, the other for VB.