c# - What option define the using of `WcfSvcHost` in the `WCF Service Library` template? -

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wcf, .net 4.6, visual studio 2015

from programming wcf services, 4th edition juval lowy book:

visual studio offers several wcf project templates. wcf service library project merely prebuilt usage of wcfsvchost , wcftestclient. main difference when using wcf service library template there no need specify config file , specify wcfsvchost.exe startup program, because project file contain new projecttypeguids element wcf service library. wcf service library provides simple template service contract , implementation, matching config file.

but if comment projecttypeguids element in csproj-file ide still uses wcfsvchost start external program... hm...

by default debug tab of new project created on base wcf service library template has such settings:

enter image description here

i see start external program option empty...

why visual studio 2015 project still uses wcfsvchost start external program after commented projecttypeguids element? option define such behaviour?


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