系统.ArgumentException和System.ComponentModel.获取进程信息时出现Win32Exc

本文关键字：信息 Win32Exc 取进程 获取 ArgumentException System ComponentModel 系统 | 更新日期: 2023-09-27 18:16:40

当我尝试将进程信息写入控制台时，我得到System。ArgumentException和System.ComponentModel.Win32Exception。是什么原因造成的?我怎么能不吃呢?

        Process processListe = Process.GetProcesses();

            for (int i = 0; i < processListe.Count(); i++)
            {
                try
                {
                string companyName = processListe[i].MainModule.FileVersionInfo.CompanyName;
                string fileVersion = processListe[i].MainModule.FileVersionInfo.FileVersion;
                Console.WriteLine(companyName  + " " + fileVersion);

                }
                catch (Exception) { }

            }

错误发生在"string companyName = processListe[i]. mainmodule . fileversioninfo . companyName;"行

错误消息:

   System.ArgumentException: Illegal characters in path.
   at System.Security.Permissions.FileIOPermission.HasIllegalCharacters(String[] str)
   at System.Security.Permissions.FileIOPermission.AddPathList(FileIOPermissionAccess access, AccessControlActions control, String[] pathListOrig, Boolean checkForDuplicates, Boolean needFullPath, Boolean copyPathList)
   at System.Security.Permissions.FileIOPermission..ctor(FileIOPermissionAccess access, String[] pathList, Boolean checkForDuplicates, Boolean needFullPath)
   at System.IO.Path.GetFullPath(String path)
   at System.Diagnostics.FileVersionInfo.GetFullPathWithAssert(String fileName)
   at System.Diagnostics.FileVersionInfo.GetVersionInfo(String fileName)
   at System.Diagnostics.ProcessModule.get_FileVersionInfo()

   A first chance exception of type 'System.ComponentModel.Win32Exception' occurred in System.dll
   System.ComponentModel.Win32Exception (0x80004005): Unable to enumerate the process modules.
   at System.Diagnostics.NtProcessManager.GetModuleInfos(Int32 processId, Boolean firstModuleOnly)
   at System.Diagnostics.NtProcessManager.GetFirstModuleInfo(Int32 processId)
   at System.Diagnostics.Process.get_MainModule()

最后，我对那些使我出错的过程进行了信息输出:

    Exception: Illegal characters in path.
    Proess Name: winlogon Company Name: Aestan Software Version: 1.6.1.33
    Detail: System.ArgumentException: Illegal characters in path.
   at System.Security.Permissions.FileIOPermission.HasIllegalCharacters(String[] str)
   at System.Security.Permissions.FileIOPermission.AddPathList(FileIOPermissionAccess access, AccessControlActions control, String[] pathListOrig, Boolean checkForDuplicates, Boolean needFullPath, Boolean copyPathList)
   at System.Security.Permissions.FileIOPermission..ctor(FileIOPermissionAccess access, String[] pathList, Boolean checkForDuplicates, Boolean needFullPath)
   at System.IO.Path.GetFullPath(String path)
   at System.Diagnostics.FileVersionInfo.GetFullPathWithAssert(String fileName)
   at System.Diagnostics.FileVersionInfo.GetVersionInfo(String fileName)
   at System.Diagnostics.ProcessModule.get_FileVersionInfo()
    Exception: Illegal characters in path.
    Proess Name: csrss Company Name: Microsoft Corporation Version: 2009.0100.1600.01 ((KJ_RTM).100402-1540 )
    Detail: System.ArgumentException: Illegal characters in path.
at System.Security.Permissions.FileIOPermission.HasIllegalCharacters(String[] str)
   at System.Security.Permissions.FileIOPermission.AddPathList(FileIOPermissionAccess access, AccessControlActions control, String[] pathListOrig, Boolean checkForDuplicates, Boolean needFullPath, Boolean copyPathList)
   at System.Security.Permissions.FileIOPermission..ctor(FileIOPermissionAccess access, String[] pathList, Boolean checkForDuplicates, Boolean needFullPath)
   at System.IO.Path.GetFullPath(String path)
   at System.Diagnostics.FileVersionInfo.GetFullPathWithAssert(String fileName)
   at System.Diagnostics.FileVersionInfo.GetVersionInfo(String fileName)
   at System.Diagnostics.ProcessModule.get_FileVersionInfo()
    Exception: Unable to enumerate the process modules.
    Proess Name: System Company Name: BitTorrent, Inc. Version: 7.5.0.25682
    Detail: System.ComponentModel.Win32Exception (0x80004005): Unable to enumerate the process modules. 
at System.Diagnostics.NtProcessManager.GetModuleInfos(Int32 processId, Boolean firstModuleOnly)
   at System.Diagnostics.NtProcessManager.GetFirstModuleInfo(Int32 processId)
   at System.Diagnostics.Process.get_MainModule()
    Exception: Access is denied
    Proess Name: Cheat Engine Company Name:  Version: 5.6.1.10
    Detail:  System.ComponentModel.Win32Exception (0x80004005): Access is denied
   at System.Diagnostics.ProcessManager.OpenProcess(Int32 processId, Int32 access, Boolean throwIfExited)
   at System.Diagnostics.Process.GetProcessHandle(Int32 access, Boolean throwIfExited)
   at System.Diagnostics.Process.get_HasExited()

系统.ArgumentException和System.ComponentModel.获取进程信息时出现Win32Exc

简短的回答是，您无法摆脱异常。当我运行这段代码时，我看到了一些在文档中没有显式调用的异常:

  1. Win32Exception - Access Denied:该进程以用户身份运行，当前用户没有访问该进程的权限。请注意，即使以管理员身份运行，您也无法访问所有进程(例如，由于DRM限制，audiodg.exe)
  2. Win32Exception - 32位进程无法访问64位进程的模块
  3. Win32Exception -无法枚举进程模块-我看到这种情况发生在伪进程System和Idle上-它们不是真正的进程(它们是内核服务的占位符)并且没有任何模块要列出。

根据Microsoft，如果进程在调用Process.GetProcesses()和访问processLite[i].MainModule之间退出，则得到ArgumentException

检查processLite[i].HasExited可能有帮助，但不能保证，因为在您进行下一次调用之前，仍有足够的时间让进程退出。

只是一个想法，但是当您输出信息时，您不应该确保流程仍在运行吗?我认为列表可能只是对进程的引用，当您尝试访问属性时，它试图重新调用现在不存在的进程。

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