基本上代码来自msdn.microsoft.com

构建代码后，打开命令提示符并输入：Installutil -i％path％/ Mycmdlets.dll

结果表明安装阶段成功完成，提交阶段也成功完成 . 但是，如果我去：

Get-PSSnapin -Registered，只显示sqlServerCmdletSnapin，但我的cmdlet不存在 . 添加pssnapin也不起作用 .

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

namespace Mycmdlets
{

[Cmdlet("hy", "Hello")]
public class GetHelloCommand : Cmdlet
{
    protected override void EndProcessing()
    {
        WriteObject("Hello", true);
    }
}

[RunInstaller(true)]
public class GetProcPSSnapIn01 : PSSnapIn
{
    /// <summary>
    /// Create an instance of the GetProcPSSnapIn01 class.
    /// </summary>
    public GetProcPSSnapIn01()
        : base()
    {
    }

    /// <summary>
    /// Specify the name of the PowerShell snap-in.
    /// </summary>
    public override string Name
    {
        get
        {
            return "GetProcPSSnapIn01";
        }
    }

    /// <summary>
    /// Specify the vendor for the PowerShell snap-in.
    /// </summary>
    public override string Vendor
    {
        get
        {
            return "Microsoft";
        }
    }

    /// <summary>
    /// Specify the localization resource information for the vendor. 
    /// Use the format: resourceBaseName,VendorName. 
    /// </summary>
    public override string VendorResource
    {
        get
        {
            return "GetProcPSSnapIn01,Microsoft";
        }
    }

    /// <summary>
    /// Specify a description of the PowerShell snap-in.
    /// </summary>
    public override string Description
    {
        get
        {
            return "This is a PowerShell snap-in that includes the get-proc cmdlet.";
        }
    }

    /// <summary>
    /// Specify the localization resource information for the description. 
    /// Use the format: resourceBaseName,Description. 
    /// </summary>
    public override string DescriptionResource
    {
        get
        {
            return "GetProcPSSnapIn01,This is a PowerShell snap-in that includes the get-proc cmdlet.";
        }
    }
}
}

编辑：

对于任何有兴趣了解解决方案的人来说，原因很简单，系统不支持x64 . 解决方案只是在c＃项目的属性中，使平台目标成为“任何CPU”而不是x86或x64 .

此外，Get-PSSnapin不会显示错误消息，但如果从Visual Studio的命令提示符运行它，它将说它正常工作;但是在powershell命令提示符下运行它会显示失败的消息 .