将C#控制台应用程序转换为服务(主方法不起作用)

我最近将方法"转换"或导入到默认的Windows服务模板中。没有语法错误，编译正常，但FileSystemWatcher方法由于某些原因不起作用，例如，当正常运行时，它会将所有已创建的进程写入process.lst，但当作为服务运行时，不会这样做（可能与工作目录有关，因为它是服务？）：

namespace WindowsService
{
    class WindowsService : ServiceBase
    {
        /// <summary>
        /// Public Constructor for WindowsService.
        /// - Put all of your Initialization code here.
        /// </summary>
        public WindowsService()
        {
            this.ServiceName = "My Service";
            this.EventLog.Source = "My Service";
            this.EventLog.Log = "Application";
            // These Flags set whether or not to handle that specific
            //  type of event. Set to true if you need it, false otherwise.
            this.CanHandlePowerEvent = true;
            this.CanHandleSessionChangeEvent = true;
            this.CanPauseAndContinue = true;
            this.CanShutdown = true;
            this.CanStop = true;
            if (!EventLog.SourceExists("My Service"))
                EventLog.CreateEventSource("My Service", "Application");
        }
        /// <summary>
        /// The Main Thread: This is where your Service is Run.
        /// </summary>
        static void Main()
        {
            ServiceBase.Run(new WindowsService());
            // This checks for any existing running instances, if found the proess is terminated immidieately.
            if (System.Diagnostics.Process.GetProcessesByName(System.IO.Path.GetFileNameWithoutExtension(System.Reflection.Assembly.GetEntryAssembly().Location)).Count() > 1) return;
            DisplayInfo();
            string dirPath = "C:''";
            FileSystemWatcher fileWatcher = new FileSystemWatcher(dirPath);
            fileWatcher.IncludeSubdirectories = true;
            fileWatcher.Filter = "*.exe";
            // fileWatcher.Filter = "C:''$Recycle.Bin";   
            //  fileWatcher.Changed += new FileSystemEventHandler(FileWatcher_Changed);   
            fileWatcher.Created += new FileSystemEventHandler(FileWatcher_Created);
            //  fileWatcher.Deleted += new FileSystemEventHandler(FileWatcher_Deleted);  
            //  fileWatcher.Renamed += new RenamedEventHandler(FileWatcher_Renamed);    
            fileWatcher.EnableRaisingEvents = true;
            // updated code
            while (true)
            {
                CleanUpDel();
                StartRemoveDuplicate();
                CompareFiles();
                bool changes = ScanFileChanges();
                if (!changes)
                {
                    TrimColon("process_trim.lst", "process_trimmed.lst");
                    TrimWipe();
                    AddTMPIgnore();
                    SendAlert();
                    CompareOrig();

                }
                Thread.Sleep(10000);
            }
        }

        private static void AddTMPIgnore()
        {
            var myString = File.ReadAllText("process_final.lst");
            File.AppendAllText("ignore_temp.lst", myString);
        }

        static void FileWatcher_Created(object sender, FileSystemEventArgs e)
        {
            using (StreamWriter fileWriter = new StreamWriter("process.lst", true))
            {
                var data = true;
                fileWriter.Write("C:''" + e.Name + Environment.NewLine);
            }

        }