DLL Error

Question

I have a .dll file and i have used its name space in c# console app as using forexfeed.net;

Then i used a class feedapi fxfeed=new feedapi(); it worked
But when i used the same .dll file in a asp.net web app add the same name space and the same class to create object it gives me the following error.

The type name 'net' does not exist in the type 'forexfeed'
and feedapi(type or name space could not be found).

Can u please tell me what is missing?

The forexfeed.dll file is attached to my post.