Session gets expired using third party dll's for pdf publishing

The Scenario:

I have a situation where I need to pass some session variables to an ASPX page, inside a DNN module. This page is then transferred to Winnovative's PDF publishing component's in the form of a byte array. The component returns a PDF document in the result, furthermore that PDF document is then emailed to the customer开发者_StackOverflow社区.

The Problem:

The session gets expired when the ASPX page is called (hosted as a part of DNN web project on IIS) to pass it to Winnovative. It was noticed that the session expired when ever I request the page (by any means) and a new session on that page is created.

Is there any workaround (without involving a database) that I can access those session variables (it is a dataset) from that particular ASP.NET page?

There was a known issue with calling non-DNN ASPX pages in DotNetNuke 5.6.1 which was fixed with 5.6.2. You might want to try upgrading to 5.6.2 and see if that resolves the issue.