Error in hosting in wcf

hi this is an example of wcf in msdn

but I can,t understand this

class Program
{
static void Main(string[] args)
{

// Step 1 of the address configuration procedure: Create a URI to serve as the base address.
Uri baseAddress = new Uri("http://localhost:8000/ServiceModelSamples/Service");

I think 8000 is the portnumber .I add 8000 portnumber but showing error


Regards

K L BAIJU

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complete example in this url
http://msdn.microsoft.com/en-us/library/ms730935%28v=vs.90%29.aspx