Hello, I ‘m back again!!!!. This post was prepared with motivation to the points that Miguel A. Castro, NetFXHarmonics and also Developer’s Dump mentioned. So to use WCF service efficiently, I won’t use “Add Service Reference” and configure WCF manually. You can already find a nice article on NetFXHarmonics but I just want to explain it in my way. Note that the example in this post is all generated by the use of NetFXHarmonics example so you can find better explanation in that blog.