title: WiX - how to create bin subdirectory?
body: <p>I'm missing something obvious.  How do you put the .dll's in a subdirectory called "bin" under your install directory?  I'm trying to follow this tutorial: 
  <a href="http://www.tramontana.co.hu/wix/lesson5.php#5.3" rel="nofollow noreferrer">http://www.tramontana.co.hu/wix/lesson5.php#5.3</a>
  to deploy a WCF web service.  So I need to copy the .svc files and the .bin files, along with a few other, but starting with just these two.  I'm using Wix 3.5 under Visual Studio.</p>
  
  <pre><code>    &lt;Directory Id="TARGETDIR" Name="SourceDir"&gt;
          &lt;Directory Id="ProgramFilesFolder"&gt;
              &lt;Directory Id="INSTALLLOCATION" Name="TFBIC.RCT.WCFWebServicesWIXSetup"&gt;
                  &lt;Component Id="ProductComponent" Guid="E9A375FB-DF6A-4806-8B0B-03BE4A50802F"&gt; 
                      &lt;File Id='SVC1' Name='CreateUpdateReturnService.svc' DiskId='1' Source='../TFBIC.RCT.WCFWebServices/CreateUpdateReturnService.svc'  /&gt;
                  &lt;/Component&gt;
              &lt;/Directory&gt;
              &lt;Directory Id="INSTALLLOCATION" Name="TFBIC.RCT.WCFWebServicesWIXSetup"&gt;
                  &lt;Component Id="ProductComponent" Guid="E9A375FB-DF6A-4806-8B0B-03BE4A50802F"&gt;
                      &lt;File Id='DLL1' Name='TFBIC.RCT.WCFWebServices.dll' DiskId='1' Source='../TFBIC.RCT.WCFWebServices/bin/TFBIC.RCT.WCFWebServices.dll'  /&gt;
                  &lt;/Component&gt;
              &lt;/Directory&gt;
          &lt;/Directory&gt;
          &lt;Component Id='TestWebVirtualDirComponent' Guid='9586807E-9065-48e8-8E73-13A9191962E5'&gt;
              &lt;iis:WebVirtualDir Id='TestWebVirtualDir' Alias='Test' Directory='InstallDir'
                WebSite='DefaultWebSite'&gt;
                  &lt;iis:WebApplication Id='TestWebApplication' Name='Test' /&gt;
              &lt;/iis:WebVirtualDir&gt;
          &lt;/Component&gt;
  
      &lt;/Directory&gt;
  </code></pre>
  
  <p>I tried putting \bin on the ID and the name attribute, and it didn't like either (invalid character). </p>
  
  <p>Also, with IIS, is the best practice to install in c:\program files, or in c:\inetpub\wwwroot?  How to I switch the default directory to c:\inetpub\wwwroot\myproj? </p>
  
  <p>These are my various first experiments with WiX. </p>