vshost files are used for debugging inside Visual Studio http://blogs.msdn.com/b/dtemp/archive/2004/08/17/215764.aspx

>Hi
>
>When I build my c# application I get
>
>ConcurEmail.exe
>ConcurEmail.exe.config
>
>and
>
>ConcurEmail.vshost.exe
>ConcurEmail.vshost.exe.config
>
>why and whats the difference ?
>
>Thanks
>
>Nick