I've integrated DNN Application with existing web application. Here I'm having 2 concerns:

1)  How to check Session programmatically for all users in dnn pages. & where should we check it (i.e. in which page? is it default.aspx ?)

2) Both existing ASP.net Application & DNN Application are using Membership providers. I set the ASP.net Membership provider as default one. Now, for DNN pages - where should i code (programmatically), so that dnn will identify the DNN membership provider?

Thanks in Advance

Thanks for prompt response Sebastian. As i mentioned earlier we integrated existing ASP.net application & DNN Application too. User will be logging in to the existing application first. then only they will be navigated to the DNN pages else no.

 & This is the main reason i'm looking for the section where I need to code check session & member ship provider too. because even existing application is using their membership database. I marked existing application membership provider as default one.