Tengo un programa C # (target framework .NET 4.0) que realiza llamadas a objetos COM (código no administrado), todos los objetos administrados correctamente, destruidos cuando ya no son necesarios, etc.

Tengo también algunas excepciones manejador, trate / atrapar bloques sin excepciones personalizadas. Sin embargo, algunas veces este programa falla, funciona la mayoría de las veces, comportamiento aleatorio. Las trazas de pila también varían, por ejemplo:

System.AccessViolationException was unhandled
  Message=Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
  Source=System.Windows.Forms
  StackTrace:
       at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
       at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
       at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
       at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
       at System.Windows.Forms.Application.Run(Form mainForm)
       at IndexerTester.Program.Main() in D:\Tester\Program.cs:line 17
  InnerException:

In Program.cs, Línea 17: Application.Run (nuevo Form1 ());

System.Runtime.InteropServices.SEHException was unhandled
  Message=External component has thrown an exception.
  Source=System.Windows.Forms
  ErrorCode=-2147467259
  StackTrace:
       at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
       at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
       at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
       at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
       at System.Windows.Forms.Application.Run(Form mainForm)
       at IndexerTester.Program.Main() in D:\Tester\Program.cs:line 17
       at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
       at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()
  InnerException:

Estoy en una etapa de aislamiento para descubrir la raíz de este error.

¿Tiene alguna sugerencia de este error?Cualquier sugerencia sobre detectar estas excepciones y salir con gracia.

Gracias por tu ayuda