The me2me host is now configurable from the web UI on Windows.

remoting/host/installer/chromoting.wxs

 <?xml version="1.0"?>
 <Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
 
   <?define EventSourceName = "chromoting" ?>
   <?define ServiceName = "chromoting" ?>
 
   <?ifdef OfficialBuild ?>
     <?define ChromotingHost = "Chrome Remote Desktop Host" ?>
     <?define FirewallName = "Chrome Remote Desktop Host" ?>
     <?define Manufacturer = "Google Inc." ?>
@@ skipping 81 matching lines @@
                         Name="$(var.ServiceName)"
                         DisplayName="@[chromoting]remoting_service.exe,-101"
                         Description="@[chromoting]remoting_service.exe,-102"
                         Arguments="--host-binary=&quot;[chromoting]remoting_me2me_host.exe&quot;"
                         Start="auto"
                         Account="LocalSystem"
                         ErrorControl="ignore"
                         Interactive="no" />
 
         <ServiceControl Id="start_service"
-                        Start="install"
                         Stop="both"
                         Remove="uninstall"
                         Name="$(var.ServiceName)"
                         Wait="yes" />
       </Component>
 
       <Component Id="remoting_me2me_host.exe"
                  Guid="0e1889af-f3f8-45a2-b2d0-c719d53c4474">
         <File Id="remoting_me2me_host.exe"
               DiskId="1"
@@ skipping 127 matching lines @@
               <RegistryKey Key="ProxyStubClsid32" Action="create">
                 <RegistryValue Type="string"
                                Value="{00020424-0000-0000-C000-000000000046}"/>
               </RegistryKey>
 
               <RegistryKey Key="TypeLib" Action="create">
                 <RegistryValue Type="string"
                                Value="$(var.ControllerTypelib)"/>
               </RegistryKey>
             </RegistryKey>
-
-            <RegistryKey Key="{3ca3adb6-2dea-4c74-b267-610fef11e4ff}"
-                         Action="create">
-              <RegistryKey Key="ProxyStubClsid32" Action="create">
-                <RegistryValue Type="string"
-                               Value="{00020424-0000-0000-C000-000000000046}"/>
-              </RegistryKey>
-
-              <RegistryKey Key="TypeLib" Action="create">
-                <RegistryValue Type="string"
-                               Value="$(var.ControllerTypelib)"/>
-              </RegistryKey>
-            </RegistryKey>
           </RegistryKey>
 
           <RegistryKey Key="Typelib">
             <RegistryKey Key="$(var.ControllerTypelib)" Action="create">
               <RegistryKey Key="1.0" Action="create">
                 <RegistryKey Key="0" Action="create">
                   <RegistryKey Key="win32" Action="create">
                     <RegistryValue Type="string"
                                    Value="[#$(var.ControllerBinary)]"/>
                   </RegistryKey>
@@ skipping 21 matching lines @@
     <Feature Id="chromoting_host" Level="1" Title="$(var.ChromotingHost)">
       <ComponentRef Id="omaha_registration"/>
       <ComponentRef Id="remoting_service.exe"/>
       <ComponentRef Id="remoting_me2me_host.exe"/>
       <ComponentRef Id="sas.dll"/>
       <ComponentRef Id="service_controller"/>
     </Feature>
 
   </Product>
 </Wix>