ApplicationPaths.Scan() The handle is invalid

[Nick]

Current Date/Time: 03/01/2010 13.23.59
Exec. Date/Time: 03/01/2010 13.19.05
Build Date: 11/20/2009
OS: Microsoft Windows NT 5.1.2600 Service Pack 3
Language: it-IT
System Uptime: 0 Days 1 Hours 37 Mins 60 Secs
Program Uptime: 00:00:33.1875000
PID: 5332
Executable: C:\Programmi\Little Registry Cleaner\Little Registry Cleaner.exe
Process Name: System.Diagnostics.Process (Little Registry Cleaner)
Main Module Name: Little Registry Cleaner.exe
Module Count: 46
Thread Count: 7
Thread ID: 8
Is Admin: True
Is Debugged: False
Version: 1.4
CLR Version: 2.0.50727.3603

Type #0 System.IO.IOException
Message #0: Handle non valido.

TargetSite #0: Void WinIOError(Int32, System.String)
Source #0: mscorlib

StackTrace:
  in System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
  in System.IO.FileStream.WriteCore(Byte[] buffer, Int32 offset, Int32 count)
  in System.IO.FileStream.FlushWrite(Boolean calledFromFinalizer)
  in System.IO.FileStream.Flush()
  in System.IO.StreamWriter.Flush(Boolean flushStream, Boolean flushEncoder)
  in System.IO.StreamWriter.Write(Char[] buffer, Int32 index, Int32 count)
  in System.IO.TextWriter.WriteLine(String value)
  in Little_Registry_Cleaner.Scanners.ApplicationPaths.Scan()
  in System.Threading.ThreadHelper.ThreadStart_Context(Object state)
  in System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
  in System.Threading.ThreadHelper.ThreadStart()