You can try the Survey™ Project at http://www.surveyproject.info . Survey is a free and open source web based survey and form engine toolkit for Microsoft's .net. written in asp.net and C#. It should match your needs.

Fryslan Webservices Founder of the Open Source .NET Survey Project: Survey Project Survey Sourcecode Survey Demo

buzzword by marketing guru's to trick simpletons new on the web into buying far too expensive services (cloud: originating from the fact that the internet used to be represented in slides and presentations as a little cloud) - e.g. check amazons AWS site at http://aws.amazon.com/[^] and read and weep at the incomprehensible mambojambo to get sites up and running at ridiculous prices nevertheless if you're not into the cloud you must be....

Fryslan Webservices Founder of the Open Source .NET Survey Project: Survey Project Survey Sourcecode Survey Demo