Hi Everyone!

You can find Solution of the problem with explanation of its originin in the article

Preventing the WCF Service Host from launching in Visual Studio 2008

at Rick Rainey's Blog

at http://blogs.msdn.com/rickrain/archive/2008/02/14/Preventing-the-WCF-Service-Host-from-launching-in-Visual-Studio-2008.aspx

Good luck!