Does "Add Service Reference" in VS 2010 Bring in a .NET 4.0 Dependency Even when Targetting .NET 3.5?

Question

I have some concerns about using the "Add Service Reference" dialog in Visual Studio 2010.

When I look at the files it generates, they contain references to 4.0.0.0. However my project is targeted to .NET 3.5. Is this going to be a problem? Or is it just the generation tools using .NET 4.0?

Examples:

configuration.svcinfo

<?xml version="1.0" encoding="utf-8"?>
<configurationSnapshot xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="urn:schemas-microsoft-com:xml-wcfconfigurationsnapshot">
  <behaviors />
  <bindings>
    <binding digest="System.ServiceModel.Configuration.BasicHttpBindingElement, System.ServiceModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089:&lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-16&quot;?&gt;&lt;Data hostNameComparisonMode=&quot;StrongWildcard&quot; maxBufferSize=&quot;65536&quot; messageEncoding=&quot;Text&quot; name=&quot;BasicHttpBinding_ISiteMembershipService&quot; textEncoding=&quot;utf-8&quot; transferMode=&quot;Buffered&quot;&gt;&lt;readerQuotas maxArrayLength=&quot;16384&quot; maxBytesPerRead=&quot;4096&quot; maxDepth=&quot;32&quot; maxNameTableCharCount=&quot;16384&quot; maxStringContentLength=&quot;8192&quot; /&gt;&lt;security mode=&quot;TransportCredentialOnly&quot;&gt;&lt;message algorithmSuite=&quot;Default&quot; clientCredentialType=&quot;UserName&quot; /&gt;&lt;transport clientCredentialType=&quot;Ntlm&quot; proxyCredentialType=&quot;None&quot; realm=&quot;&quot; /&gt;&lt;/security&gt;&lt;/Data&gt;" bindingType="basicHttpBinding" name="BasicHttpBinding_ISiteMembershipService" />
    <binding digest="System.ServiceModel.Configuration.BasicHttpBindingElement, System.ServiceModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089:&lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-16&quot;?&gt;&lt;Data hostNameComparisonMode=&quot;StrongWildcard&quot; maxBufferSize=&quot;65536&quot; messageEncoding=&quot;Text&quot; name=&quot;BasicHttpBinding_ISiteMembershipService1&quot; textEncoding=&quot;utf-8&quot; transferMode=&quot;Buffered&quot;&gt;&lt;readerQuotas maxArrayLength=&quot;16384&quot; maxBytesPerRead=&quot;4096&quot; maxDepth=&quot;32&quot; maxNameTableCharCount=&quot;16384&quot; maxStringContentLength=&quot;8192&quot; /&gt;&lt;security mode=&quot;TransportCredentialOnly&quot;&gt;&lt;message algorithmSuite=&quot;Default&quot; clientCredentialType=&quot;UserName&quot; /&gt;&lt;transport clientCredentialType=&quot;Ntlm&quot; proxyCredentialType=&quot;None&quot; realm=&quot;&quot; /&gt;&lt;/security&gt;&lt;/Data&gt;" bindingType="basicHttpBinding" name="BasicHttpBinding_ISiteMembershipService1" />
  </bindings>
  <endpoints>
    <endpoint normalizedDigest="&lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-16&quot;?&gt;&lt;Data address=&quot;http://aasp2010dev.aa.com:31000/_vti_bin/OBS/SiteMemberships/SiteMembershipService.svc&amp;quot; binding=&quot;basicHttpBinding&quot; bindingConfiguration=&quot;BasicHttpBinding_ISiteMembershipService&quot; contract=&quot;SiteMembershipSvc.ISiteMembershipService&quot; name=&quot;BasicHttpBinding_ISiteMembershipService&quot; /&gt;" digest="&lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-16&quot;?&gt;&lt;Data address=&quot;http://aasp2010dev.aa.com:31000/_vti_bin/OBS/SiteMemberships/SiteMembershipService.svc&amp;quot; binding=&quot;basicHttpBinding&quot; bindingConfiguration=&quot;BasicHttpBinding_ISiteMembershipService&quot; contract=&quot;SiteMembershipSvc.ISiteMembershipService&quot; name=&quot;BasicHttpBinding_ISiteMembershipService&quot; /&gt;" contractName="SiteMembershipSvc.ISiteMembershipService" name="BasicHttpBinding_ISiteMembershipService" />
  </endpoints>
</configurationSnapshot>

Reference.cs

//------------------------------------------------------------------------------
// <auto-generated>
//     This code was generated by a tool.
//     Runtime Version:4.0.30319.1
//
//     Changes to this file may cause incorrect behavior and will be lost if
//     the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------

namespace OBS.Solutions.SharePoint.SiteMemberships.SiteMembershipSvc {
    using System.Runtime.Serialization;
    using System;


    [System.Diagnostics.DebuggerStepThroughAttribute()]
    [System.CodeDom.Compiler.GeneratedCodeAttribute("System.Runtime.Serialization", "4.0.0.0")]
    [System.Runtime.Serialization.DataContractAttribute(Name="MembershipCollection", Namespace="OBS.Solutions.SharePoint.SiteMemberships")]
    [System.SerializableAttribute()]
    public partial class MembershipCollection : object, System.Runtime.Serialization.IExtensibleDataObject, System.ComponentModel.INotifyPropertyChanged {
...