Today I stumbled across a post from Douglas Purdy that talked about diagnostic switches for the XmlSerializer.

Create an application configuration file with the following contents:

<configuration>
   <system.diagnostics>
      <switches>
         <add name="XmlSerialization.Compilation" value="1" />
      </switches>
   </system.diagnostics>
</configuration>

By doing this, you will have some files that are created and retained in your %TEMP% directory.

• xxxx.cmdline – contains the command line used to compile the command
• xxxx.0.cs and xxxx.out – contains the output of the compile command
• xxxx.err – contains any error messages output by the command
• xxxx.pdb – contains debugging symbols