Tenho um programa C # (estrutura de destino .NET 4.0) que faz chamadas para objetos COM (código não gerenciado), todos os objetos gerenciados corretamente, destruídos quando não são mais necessários et

Tenho também poucas manipulações de exceções, blocos try / catch sem exceções personalizadas. No entanto, algumas vezes este programa falhou, funciona na maioria das vezes, comportamento aleatório. Os rastreamentos de pilha também variam, por exemplo:

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, Linha 17: Application.Run (new 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:

stou em estágio de isolamento para descobrir a raiz desse err

Você tem alguma sugestão desse erro? Quaisquer sugestões sobre como capturar essas exceções e sair normalment

Obrigado pela ajuda