.NET调用WMI后无论是同步调用还是异步调用，都会产生返回一个int类型的执行结果。如果成功，则返回0。如果不是0，则有对应错误码表示发生了什么错误。
根据咱们这个系列的博文，我总结了关于进程，服务，目录和共享四种异常的错误码。
CheckExceptionClass类是异常检查类，所有WMI执行后，都要执行这个类里面的相关方法进行状态检测，以确保执行成功。代码如下：
using System; using System.Collections.Generic; using System.Text; using TJVictor.WMI.WmiException; namespace TJVictor.WMI { class CheckExceptionClass { public static void CheckDirectoryExcepton(int exceptionCode) { if (!exceptionCode.Equals(0)) throw new DirectoryException(exceptionCode); } public static void CheckProcessException(int exceptionCode) { if (!exceptionCode.Equals(0)) throw new ProcessException(exceptionCode); } public static void CheckServiceException(int exceptionCode) { if (!exceptionCode.Equals(0)) throw new ServiceException(exceptionCode); } public static void CheckShareException(int exceptionCode) { //if (!exceptionCode.Equals(0)) // throw new IICV2WmiAccess.WmiException.ShareException(exceptionCode); } } } ProcessException类是进程异常类。代码如下： using System; using System.Collections.Generic; using System.Text; using System.Management; namespace TJVictor.WMI.WmiException { /// /// The Create method creates a new process. /// The method returns an integer value that can be interpretted as follows: /// 0 - Successful completion. /// 2 - The user does not have access to the requested information. /// 3 - The user does not have sufficient privilge. /// 8 - Unknown failure. /// 9 - The path specified does not exist. /// 21 - The specified parameter is invalid. /// Other - For integer values other than those listed above, refer to Win32 error code documentation. /// public class ProcessException : ManagementException { public new string Message; public ProcessException(int errorCode) : base() { switch (errorCode) { case 2: Message = "The user does not have access to the requested information."; break; case 3: Message = "The user does not have sufficient privilge."; break; case 8: Message = "Unknown failure."; break; case 9: Message = "The path specified does not exist."; break; case 21: Message = "The specified parameter is invalid."; break; default: Message = "Unknown failure."; break; } } public ProcessException(string message) : base() { this.Message = message; } } } ServiceException类是服务异常类。代码如下： using System; using System.Collections.Generic; using System.Text; using System.Management; namespace TJVictor.WMI.WmiException { /// /// 0 - The request was accepted. /// 1 - The request is not supported. /// 2 - The user did not have the necessary access. /// 3 - The service cannot be stopped because other services that are running are dependent on it. /// 4 - The requested control code is not valid, or it is unacceptable to the service. /// 5 - The requested control code cannot be sent to the service because the state of the service (Win32_BaseService:State) is equal to 0, 1, or 2. /// 6 - The service has not been started. /// 7 - The service did not respond to the start request in a timely fashion. /// 8 - Unknown failure when starting the service. /// 9 - The directory path to the service executable was not found. /// 10 - The service is already running. /// 11 - The database to add a new service is locked. /// 12 - A dependency for which this service relies on has been removed from the system. /// 13 - The service failed to find the service needed from a dependent service. /// 14 - The service has been disabled from the system. /// 15 - The service does not have the correct authentication to run on the system. /// 16 - This service is being removed from the system. /// 17 - There is no execution thread for the service. /// 18 - There are circular dependencies when starting the service. /// 19 - There is a service running under the same name. /// 20 - There are invalid characters in the name of the service. /// 21 - Invalid parameters have been passed to the service. /// 22 - The account, which this service is to run under is either invalid or lacks the permissions to run the service. /// 23 - The service exists in the database of services available from the system. /// 24 - The service is currently paused in the system. /// Other - For integer values other than those listed above, refer to Win32 error code documentation. /// public class ServiceException : ManagementException { public new string Message; public ServiceException(int errorCode) : base() { switch (errorCode) { case 0: Message = "The request was accepted."; break; case 1: Message = "The request is not supported."; break; case 2: Message = "The user did not have the necessary access."; break; case 3: Message = "The service cannot be stopped because other services that are running are dependent on it."; break; case 4: Message = "The requested control code is not valid, or it is unacceptable to the service."; break; case 5: Message = "The service is already stopped."; break; case 6: Message = "The service has not been started."; break; case 7: Message = "The service did not respond to the start request in a timely fashion."; break; case 8: Message = "Unknown failure when starting the service."; break; case 9: Message = "The directory path to the service executable was not found."; break; case 10: Message = "The service is already running."; break; case 11: Message = "The database to add a new service is locked."; break; case 12: Message = "A dependency for which this service relies on has been removed from the system."; break; case 13: Message = "The service failed to find the service needed from a dependent service."; break; case 14: Message = "The service has been disabled from the system."; break; case 15: Message = "The service does not have the correct authentication to run on the system."; break; case 16: Message = "This service is being removed from the system."; break; case 17: Message = "There is no execution thread for the service."; break; case 18: Message = "There are circular dependencies when starting the service."; break; case 19: Message = "There is a service running under the same name."; break; case 20: Message = "There are invalid characters in the name of the service."; break; case 21: Message = "Invalid parameters have been passed to the service."; break; case 22: Message = "The account, which this service is to run under is either invalid or lacks the permissions to run the service."; break; case 23: Message = "The service exists in the database of services available from the system."; break; case 24: Message = "The service is currently paused in the system."; break; default: Message = "Unknown failure."; break; } } public ServiceException(string message) : base() { this.Message = message; } } } DirectoryException类是目录异常类。代码如下： using System; using System.Collections.Generic; using System.Text; using System.Management; namespace TJVictor.WMI.WmiException { /// /// 0 - The request was successful. /// 2 - Access was denied. /// 8 - An unspecified failure occurred. /// 9 - The name specified was invalid. /// 10 - The object specified already exists. /// 11 - The file system is not NTFS. /// 12 - The platform is not Windows NT or Windows 2000. /// 13 - The drive is not the same. /// 14 - The directory is not empty. /// 15 - There has been a sharing violation. /// 16 - The start file specified was invalid. /// 17 - A privilege required for the operation is not held. /// 21 - A parameter specified is invalid. /// public class DirectoryException : ManagementException { public new string Message; public DirectoryException(int errorCode) : base() { switch (errorCode) { case 2: Message = "Access was denied."; break; case 8: Message = "An unspecified failure occurred."; break; case 9: Message = "The name specified was invalid."; break; case 10: Message = "The object specified already exists."; break; case 11: Message = "The file system is not NTFS."; break; case 12: Message = "The platform is not Windows NT or Windows 2000."; break; case 13: Message = "The drive is not the same."; break; case 14: Message = "The directory is not empty."; break; case 15: Message = "There has been a sharing violation."; break; case 16: Message = "The start file specified was invalid."; break; case 17: Message = "A privilege required for the operation is not held."; break; case 21: Message = "A parameter specified is invalid."; break; default: Message = "Unknown failure."; break; } } public DirectoryException(string message) : base() { Message = message; } } } ShareException类是共享异常类。代码如下： using System; using System.Collections.Generic; using System.Text; using System.Management; namespace TJVictor.WMI.WmiException { /// /// 0 - Successful completion. /// 2 - The user does not have access to the requested information. /// 8 - Unknown failure. /// 9 - The character or file system name is invalid. /// 10 - The value specified for the level parameter is invalid. /// 21 - The specified parameter is invalid. /// 22 - The share name is already in use on this server. /// 23 - The operation is invalid for a redirected resource. The specified device name is assigned to a shared resource. /// 24 - The device or directory does not exist. /// 25 - The share name does not exist. /// Other - For integer values other than those listed above, refer to Win32 error code documentation. /// public class ShareException : ManagementException { public new string Message; public ShareException(int errorCode) : base() { switch (errorCode) { case 2: Message = "The user does not have access to the requested information."; break; case 8: Message = "Unknown failure."; break; case 9: Message = "The character or file system name is invalid."; break; case 10: Message = "The value specified for the level parameter is invalid. "; break; case 21: Message = "The specified parameter is invalid."; break; case 22: Message = "The share name is already in use on this server."; break; case 23: Message = "The operation is invalid for a redirected resource. The specified device name is assigned to a shared resource."; break; case 24: Message = "The device or directory does not exist."; break; case 25: Message = "The share name does not exist."; break; default: Message = "For integer values other than those listed above, refer to Win32 error code documentation."; break; } } public ShareException(string message) : base() { this.Message = message; } } } 关于这个类的使用方法，我在介绍使用WMI控制进程、服务、目录、共享的代码中都有体现。这里不再对其使用方法做过多的介绍。 其实异常类的错误代码可以在MSDN中找到，这里不再一一列举。