title: Install C# Service on Windows Server (Access Denied)
body: <p>I created a C# service. Now I want to install that service on Windows Server 2008 R2.
  I am using the <strong>InstallUtil</strong> command to install the service. I opened the command prompt as an admin.</p>
  
  <p>The service should run as a certain user, therefore I set the account to user on the Service Installer. </p>
  
  <p>When I run the command I get an error:</p>
  
  <p>An exception occured during the Install phase:
  <code>System.ComponentModel.Win32Exception: Access Denied</code>.</p>
  
  <p>Here is the log file:</p>
  
  <pre><code>Installing assembly 'C:\Service\MyService.exe'.
  Affected parameters are:
     logtoconsole = 
     logfile = C:\Service\MyService.InstallLog
     assemblypath = C:\Service\MyService.exe
  Rolling back assembly 'C:\Service\MyService.exe'.
  Affected parameters are:
     logtoconsole = 
     logfile = C:\Service\MyService.InstallLog
     assemblypath = C:\Service\MyService.exe
  An exception occurred during the Rollback phase of the System.ServiceProcess.ServiceProcessInstaller installer.
  System.NullReferenceException: Object reference not set to an instance of an object.
  An exception occurred during the Rollback phase of the installation. This exception will be     ignored and the rollback will continue. However, the machine might not fully revert to its initial state after the rollback is complete.
  </code></pre>
  
  <p>Here is what is displayed on the command prompt:</p>
  
  <pre><code>Beginning the Install phase of the installation.
  See the contents of the log file for the C:\Service\MyService.exe assembly's progress.
  The file is located at C:\Service\MyService.InstallLog.
  Installing assembly 'C:\Service\MyService.exe'.
  Affected parameters are:
     logtoconsole =
     logfile = C:\Service\MyService.InstallLog
     assemblypath = C:\Service\MyService.exe
  
  An exception occurred during the Install phase.
  System.ComponentModel.Win32Exception: Access Denied
     at System.ServiceProcess.ServiceProcessInstaller.OpenSecurityPolicy()
     at System.ServiceProcess.ServiceProcessInstaller.Install(IDictionary stateSaver)
     at System.Configuration.Install.Installer.Install(IDictionary stateSaver)
     at System.Configuration.Install.Installer.Install(IDictionary stateSaver)
     at System.Configuration.Install.AssemblyInstaller.Install(IDictionary savedState)
     at System.Configuration.Install.Installer.Install(IDictionary stateSaver)
     at System.Configuration.Install.TransactedInstaller.Install(IDictionary savedState)
  
  The Rollback phase of the installation is beginning.
  See the contents of the log file for the C:\Service\MyService.exe assembly's progress.
  The file is located at C:\Service\MyService.InstallLog.
  Rolling back assembly 'C:\Service\MyService.exe'.
  Affected parameters are:
     logtoconsole =
     logfile = C:\Service\MyService.InstallLog
     assemblypath = C:\Service\MyService.exe
  An exception occurred during the Rollback phase of the System.ServiceProcess.Ser
  viceProcessInstaller installer.
  System.NullReferenceException: Object reference not set to an instance of an obj
  ect.
  An exception occurred during the Rollback phase of the installation. This exception will be ignored and the rollback will continue. However, the machine might not 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.
  </code></pre>
  
  <p>Does somebody know what I need to do to install the service?</p>