我有一个使用以下代码（bat 文件）安装的 Windows 服务：
@ECHO OFF
REM The following directory is for .NET 4.0
set DOTNETFX2=%SystemRoot%\Microsoft.NET\Framework\v4.0.30319
set PATH=%PATH%;%DOTNETFX2%
echo Installing IEPPAMS Win Service...
echo ---------------------------------------------------
C:\Windows\Microsoft.NET\Framework64\v4.0.30319\InstallUtil "%~dp0MyApp5.WindowsService.exe"
echo ---------------------------------------------------
pause
echo Done.
这适用于几乎所有运行 Windows Server 的计算机。有时必须将 bat 文件重新保存为 ANSI 或 UTF8，但之后它在大多数情况下都可以工作。
但是，我遇到了 Windows Server 2012 计算机，在使用 install.but fil 时出现以下异常：
Installing IEPPAMS Win Service...
---------------------------------------------------
Microsoft (R) .NET Framework Installation utility Version 4.0.30319.18010
Copyright (C) Microsoft Corporation. All rights reserved.
Running a transacted installation.
Beginning the Install phase of the installation.
See the contents of the log file for the C:\MyAppService54\MyApp5.WindowsService
.exe assembly's progress.
The file is located at C:\MyAppService54\MyApp5.WindowsService.InstallLog.
Installing assembly 'C:\MyAppService54\MyApp5.WindowsService.exe'.
Affected parameters are:
logtoconsole =
assemblypath = C:\MyAppService54\MyApp5.WindowsService.exe
logfile = C:\MyAppService54\MyApp5.WindowsService.InstallLog
Unable to create an instance of the MyApp5.WindowsService.ProjectInstaller insta
ller type.
System.Reflection.TargetInvocationException: Exception has been thrown by the ta
rget of an invocation.
The inner exception System.NullReferenceException was thrown with the following
error message: Object reference not set to an instance of an object..
An exception occurred during the Install phase.
System.InvalidOperationException: Unable to create an instance of the MyApp5.Win
dowsService.ProjectInstaller installer type.
The inner exception System.Reflection.TargetInvocationException was thrown with
the following error message: Exception has been thrown by the target of an invoc
ation..
The inner exception System.NullReferenceException was thrown with the following
error message: Object reference not set to an instance of an object..
The Rollback phase of the installation is beginning.
See the contents of the log file for the C:\MyAppService54\MyApp5.WindowsService
.exe assembly's progress.
The file is located at C:\MyAppService54\MyApp5.WindowsService.InstallLog.
Rolling back assembly 'C:\MyAppService54\MyApp5.WindowsService.exe'.
Affected parameters are:
logtoconsole =
assemblypath = C:\MyAppService54\MyApp5.WindowsService.exe
logfile = C:\MyAppService54\MyApp5.WindowsService.InstallLog
Unable to create an instance of the MyApp5.WindowsService.ProjectInstaller insta
ller type.
System.Reflection.TargetInvocationException: Exception has been thrown by the ta
rget of an invocation.
The inner exception System.NullReferenceException was thrown with the following
error message: Object reference not set to an instance of an object..
An exception occurred during the Rollback phase of the System.Configuration.Inst
all.AssemblyInstaller installer.
System.InvalidOperationException: Unable to create an instance of the MyApp5.Win
dowsService.ProjectInstaller installer type.
The inner exception System.Reflection.TargetInvocationException was thrown with
the following error message: Exception has been thrown by the target of an invoc
ation..
The inner exception System.NullReferenceException was thrown with the following
error message: Object reference not set to an instance of an object..
An exception occurred during the Rollback phase of the installation. This except
ion will be ignored and the rollback will continue. However, the machine might n
ot fully revert to its initial state after the rollback is complete.
The Rollback phase completed successfully.
The transacted install has completed.
The installation failed, and the rollback has been performed.
---------------------------------------------------
Press any key to continue . . .
我看到它得到一个 NullRef 异常，但我不明白吗？它在所有其他计算机上运行良好。我知道这个特定的环境有一些额外的安全规则，会是这样吗？