how to automatic loggon to vBulletin from our application

[mlazo]

Hello,

Our firm use vBulletin forum version 5.0.2.
We have also our own application that use their own users and rights. Users are managed in our application (it is not possible to change). Now we start to use also vBulletin forum as helpdesk and we would need following:

if the user logs into our application we would need automatic logon to vBulletin forum.
if the user creates the account in our application we would need also automatic creates account in vBulletin forum.
Is it possible to do something similar by accessible form (by example web service )?

Our application use MsSQL database and ASP.NET

Could you please advise?