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System.Net and related.

Summary: Useful logging option to track problems on Sockets, Remoting Channel, Web Requests and HttpListener.
Platform: .Net 2.0
Details:

• How to: Configure Network Tracing
• Enabling Network Tracing

ADO.Net Managed Provider ETW Tracing

Summary: Very powerful tracing with details on API invocations, 1st chance exceptions. Next generation of high performance tracing.
Platform: .Net 2.0 with Windows 2003 SP1 or Windows XP SP2
Details:

• Tracing Data Access

System.Xml Serialization.

Summary: Leave the temporary auto-generarted XML serialization code behind for easier debugging XML serialization problems.
Platform: .Net 1.0 above
Details:

• PRB: You Receive a "System.IO.FileNotFoundException" Error When the Client Application Calls a Web Service
• Troubleshooting Common Problems with the XmlSerializer

Visual Studio 2005 IDE Activity Log

Summary: Provide additional information for IDE crash issues.
Platform: Visual Studio 2005
Details:

• /Log (devenv.exe)

Team Foundation Server Component Trace

Summary: File based trace for TFS components.
Platform: Team Foundation Server
Details:

• Global Web.Config File Settings in Team Foundation Server Components
• Enabling Trace for Team Foundation Server Components

Team Build Service Log

Summary: Detailed log for troubleshooting Team Build Service problems.
Platform: Team Foundation Server
Details:

Please refer to the comment in the following file where Team Build Service is installed: 
C:\Program Files\Microsoft Visual Studio 8\Common7\IDE\PrivateAssemblies\tfsbuildservice.exe.config

Team Foundation Client Log

Summary: This log is useful for tracking problem, espcially performance problem with Team Explorer.
Platform: Team Foundation Server Client Components
Details:
There seems to be no formal document on this. Buck's blog has mentioned it:

• How to measure performance using the web service performance dialog
  

Apart from Buck's blog, the setting for the .Config file can also use a file based trace listener:

 1 <system.diagnostics>
 2     <switches>
 3       <add name="General" value="4" />
 4     </switches>
 5     <trace autoflush="true" indentsize="3">
 6       <listeners>
 7         <add name="myListener"        
 8          type="Microsoft.TeamFoundation.TeamFoundationTextWriterTraceListener,
 9          Microsoft.TeamFoundation.Common, Version=8.0.0.0, Culture=neutral,
10          PublicKeyToken=b03f5f7f11d50a3a"
11          initializeData="c:\devenv.log" />
12       </listeners>
13     </trace>
14 </system.diagnostics>

IEHost Log

Summary: Trace for troubleshooting .Net WinForm component download hosted in IE.
Platform: .Net 1.0 above
Details:

• HOW TO: Use the IEHost Log to Debug .NET Object Hosting in Internet Explorer

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