We are creating a mobile web application that will run under ASP.Net and will connect to an internal SharePoint Server. We need to remotely authenticate users from this web application to see whether they have access to SharePoint Server data. The web application won't be connected to active directory. Do we have to use Authenticate.asmx in SharePoint? And one more detail, SharePoint Server can be running with Windows authentication or Forms Based authentication.
If someone sheds some light on this I will be grateful.