目前我尝试创建C＃（2010）服务。
我创建了一个visual studio安装项目。每当我尝试安装服务时，我都会收到消息
Error 1001. Source MyService already exists on the local computer.
在事件日志中，我找到以下信息：
- System
- Provider
[ Name] MsiInstaller
- EventID 11001
[ Qualifiers] 0
Level 2
Task 0
Keywords 0x80000000000000
- TimeCreated
[ SystemTime] 2013-10-28T14:28:23.000000000Z
EventRecordID 206256
Channel Application
Computer <MyComputer>
- Security
[ UserID] S-1-5-21-703477020-2137377117-2121179097-8027
- EventData
Product: MyServiceSetup -- Error 1001. Error 1001. Source MyService already exists on the local computer.
(NULL)
(NULL)
(NULL)
(NULL)
(NULL)
7B30353636304544462D374645372D344243312D414442422D4534424244343645393646457D
我尝试了以下命令（在带有admin-rights的命令窗口中）：
InstallUtil /u MyService.exe
和
sc delete MyService
但我一直收到这个错误。我安装了足够的权利。我完全不知道在哪里寻找解决方案。
有人可以帮帮我吗？我几乎没有头发可以拔出......
感谢名单!!!
答案 0 :(得分：2)
我自己遇到了这个问题而无法找到解决方案，所以经过几天的研究和测试以及尝试不同的事情后，我终于想出了解决这个问题的解决方案！
当您使用Windows InstallUtil.exe安装服务时，它会创建一个与您的服务名称相同的事件日志源，并将其添加到＆＃34;应用程序＆＃34;事件簿。但是，当它卸载服务时，它不会删除此源。因此，当您尝试重新安装它时，它会尝试再次添加源，但由于它已经存在，因此会出错，并且由于出现错误而导致回滚安装。
我所做的是我在自助安装/卸载服务中添加了代码，以及清理它使用的事件日志记录的方法，以及Windows在第一次安装时创建的事件。这个额外的方法是为我修复的。使用以下代码，几乎只运行-delevent几次，直到它说什么都不存在。然后再次尝试安装它应该可以工作。
在具有管理员权限的命令提示符中调用以下命令：
Service1.exe -install
Service1.exe -uninstall
Service1.exe -delevent
这是我的代码：
的Program.cs：
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Configuration.Install;
using System.ServiceProcess;
using System.ComponentModel;
namespace WindowsService1
{
static class Program
{
/// <summary>
/// The main entry point for the application.
/// </summary>
static void Main(string[] args)
{
if (args.Length > 0)
{
foreach (string item in args)
{
switch (item.ToLower())
{
case "-install":
Install(false, args); break;
case "-uninstall":
Install(true, args); break;
case "-delevent":
DeleteEventStuff(); break;
default:
Console.Error.WriteLine("Argument not expected: " + item); break;
}
}
}
else
{
ServiceBase[] ServicesToRun;
ServicesToRun = new ServiceBase[]
{
new Service1()
};
ServiceBase.Run(ServicesToRun);
}
}
// This is the method that does the actual installing/uninstalling of the service for Windows
static void Install(bool uninstall, string[] args)
{
try
{
Console.WriteLine(uninstall ? "Uninstalling Service" : "Installing Service");
using (AssemblyInstaller inst = new AssemblyInstaller(typeof(MyProjectInstaller).Assembly, args))
{
IDictionary state = new Hashtable();
inst.UseNewContext = true;
try
{
if (uninstall)
{
inst.Uninstall(state);
Console.WriteLine();
Console.WriteLine("Uninstall Successful");
}
else
{
inst.Install(state);
Console.WriteLine();
Console.WriteLine("Installed Successfuly. Now Commiting...");
inst.Commit(state);
Console.WriteLine();
Console.WriteLine("Commit Successful");
}
}
catch (Exception ex)
{
try
{
Console.WriteLine();
Console.WriteLine("ERROR: " + ex.Message);
Console.WriteLine();
Console.WriteLine("Rolling back service installation...");
inst.Rollback(state);
Console.WriteLine();
Console.WriteLine("Rollback Successful");
}
catch { }
throw;
}
}
}
catch (Exception ex)
{
Console.Error.WriteLine(ex.Message);
}
}
// This is the method that cleans up the event logging that Windows creates on install
static void DeleteEventStuff()
{
// Delete the event log stuff that the service actually uses.
if (System.Diagnostics.EventLog.SourceExists(Service1.eventSource))
{
try
{
System.Diagnostics.EventLog.DeleteEventSource(Service1.eventSource);
Console.WriteLine();
Console.WriteLine("Event source deleted successfully!");
}
catch (Exception ex)
{
Console.WriteLine();
Console.WriteLine("Error deleting event source: " + ex.Message);
}
}
else
Console.WriteLine(); Console.WriteLine("The event source '" + Service1.eventSource + "' does not exist.");
if (System.Diagnostics.EventLog.Exists(Service1.eventLog))
{
try
{
System.Diagnostics.EventLog.Delete(Service1.eventLog);
Console.WriteLine();
Console.WriteLine("Event log deleted successfully!");
}
catch (Exception ex)
{
Console.WriteLine();
Console.WriteLine("Error deleting event log: " + ex.Message);
}
}
else
Console.WriteLine(); Console.WriteLine("The event log '" + Service1.eventLog + "' does not exist.");
// Delete the event log stuff that windows installer utilities thinks the service will use.
if (System.Diagnostics.EventLog.SourceExists(Service1._serviceName))
{
try
{
System.Diagnostics.EventLog.DeleteEventSource(Service1._serviceName);
Console.WriteLine();
Console.WriteLine("Event source deleted successfully!");
}
catch (Exception ex)
{
Console.WriteLine();
Console.WriteLine("Error deleting event source: " + ex.Message);
}
}
else
Console.WriteLine(); Console.WriteLine("The event source '" + Service1._serviceName + "' does not exist.");
if (System.Diagnostics.EventLog.Exists(Service1._serviceName))
{
try
{
System.Diagnostics.EventLog.Delete(Service1._serviceName);
Console.WriteLine();
Console.WriteLine("Event log deleted successfully!");
}
catch (Exception ex)
{
Console.WriteLine();
Console.WriteLine("Error deleting event log: " + ex.Message);
}
}
else
Console.WriteLine(); Console.WriteLine("The event log '" + Service1._serviceName + "' does not exist.");
// Delete the actual custom event log file stored on the hard drive if it exists so it can be recreated on re-install
if (System.IO.File.Exists(@"%SystemRoot%\System32\winevt\Logs\" + Service1.eventLog + ".evtx"))
{
try
{
System.IO.File.Delete(@"%SystemRoot%\System32\winevt\Logs\" + Service1.eventLog + ".evtx");
Console.WriteLine();
Console.WriteLine("Event log found deleted from hard drive successfully!");
}
catch (Exception ex)
{
Console.WriteLine();
Console.WriteLine("Error deleting event log from hard drive: " + ex.Message);
}
}
else
Console.WriteLine(); Console.WriteLine("The event log '" + Service1._serviceName + "' file was not found on the hard drive.");
}
}
}