在C#中呼叫powershell指令碼，需要引用的namespace如下：

using System.Management.Automation;
using System.Management.Automation.Runspaces;

新增System.Management.Automation.dll的引用，需要使用瀏覽，如果不知道位置，可以先在本機查詢下。

程式碼如下：

//RunPowershell(@".\x.ps1", "");
         private Collection<PSObject> RunPowershell(string filePath, string parameters)
         {
             RunspaceConfiguration runspaceConfiguration = RunspaceConfiguration.Create();
             Runspace runspace = RunspaceFactory.CreateRunspace(runspaceConfiguration);
             runspace.Open();
             RunspaceInvoke scriptInvoker = new RunspaceInvoke(runspace);
             Pipeline pipeline = runspace.CreatePipeline();
             Command scriptCommand = new Command(filePath);
             Collection<CommandParameter> commandParameters = new Collection<CommandParameter>();
 
             string[] tempParas = parameters.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
             for (int i = 0; i < tempParas.Length; i += 2)
             {
                 CommandParameter commandParm = new CommandParameter(tempParas[i], tempParas[i + 1]);
                 commandParameters.Add(commandParm);
                 scriptCommand.Parameters.Add(commandParm);
             }
 
             pipeline.Commands.Add(scriptCommand);
             Collection<PSObject> psObjects;
             psObjects = pipeline.Invoke();
 
             if (pipeline.Error.Count > 0)
             {
                 throw new Exception("指令碼執行失敗");
             }
 
             runspace.Close();
 
             return psObjects;
         }