Please help with USING command

Question

Hello I'm new to C# but I'm programming for few years in Java am using MS VS 2008. I need to write application for DNS lookups. I found pretty cool add-on for C# class package library or however it is called on this link: http://www.codeproject.com/KB/IP/DNS_NET_Resolver.aspx I downloaded Project source and I found DNS folder with classes for DNS manipulation. I had copied that folder to my project folder but now i don't know how to implement that in my project. It says that library should be included with: using Heijden.DNS; but when I type that I get an error:  The type or namespace name 'Heijden' could not be found . I know I'm missing something but I don't know what. Please help me.... :(

Sam Hobbs · Answer

With your project open go to the Solution Explorer. Right-click on the References node then choose Add reference. You must add a reference there then the Using will work.

Rajneesh Verma · Answer

For this go to Toolbox choose Item then browse and add library - check this newly added library then finish. now try to add name space ... Hope this help... Thanks....