title: VisualStudio2010 Debugging - The process cannot access the file ... because it is being used by another process
body: <p>I'm unable to debug a WinForms C# application using the released version of Visual Studio 2010 Prof.</p>
  
  <p>I get the following error message after the second debugging run.</p>
  
  <p><em>Error  9   Unable to copy file "obj\x86\Debug\Arrowgrass Reports.exe" to "bin\Debug\Arrowgrass Reports.exe". The process cannot access the file 'bin\Debug\Arrowgrass Reports.exe' because it is being used by another process.</em></p>
  
  <p>I've tried a pre-build script to attempt to delete this file, but it's locked by Visual Studio.</p>
  
  <p>There are a few references to this on the net so it is a know problem. Does anyone have a hotfix or effective work-around?</p>