You have to follow the steps below to include ZSURVEY Survey Engine assemblies in your project:
Create a new ASP .NET Web Project.
In the Solution Explorer, right click on the web project and click “Add Reference …”.
Browse to the bin directory of extracted package and select the following assemblies:MentorLogic.Common.dll MentorLogic.Engines.Zodiac.dll
Click OK. The two assemblies should be added to the bin directory of the web application.
In case you have a license, then copy the license file to the bin directory of your web application.