为什么从C#调用PowerShell会抛出System.Management.Automation.CommandNotFoundException？

Question

我正在使用这个c#:

    public bool RunPowershell(string script)
    {
        RunspaceConfiguration runspaceConfig = RunspaceConfiguration.Create();

        using (Runspace runspace = RunspaceFactory.CreateRunspace(runspaceConfig))
        {
            runspace.Open();

            using (RunspaceInvoke scriptInvoker = new RunspaceInvoke(runspace))
            {
                scriptInvoker.Invoke(script);
            }
        }

        return true;
    }

要运行此脚本:

      Add-PSSnapin -name Microsoft.SystemCenter.VirtualMachineManager
      $vmm = Get-VMMServer -ComputerName "VmmComputerName"

它在Windows 2003 32位操作系统上运行正常,但在Windows 2008R2 64位上,我收到此错误:

System.Management.Automation.CommandNotFoundException: The term 'Get-VMMServer' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again.
at System.Management.Automation.CommandDiscovery.LookupCommandInfo(String commandName, CommandOrigin commandOrigin)
at System.Management.Automation.CommandDiscovery.LookupCommandProcessor(String commandName, CommandOrigin commandOrigin, Nullable`1 useLocalScope)
at System.Management.Automation.CommandFactory._CreateCommand(String commandName, CommandOrigin commandOrigin, Nullable`1 useLocalScope)
at System.Management.Automation.ExecutionContext.CreateCommand(String command)
at System.Management.Automation.CommandNode.CreateCommandProcessor(Int32& index, ExecutionContext context)
at System.Management.Automation.CommandNode.AddToPipeline(PipelineProcessor pipeline, ExecutionContext context)
at System.Management.Automation.PipelineNode.Execute(Array input, Pipe outputPipe, ArrayList& resultList, ExecutionContext context)
at System.Management.Automation.ParseTreeNode.Execute(Array input, Pipe outputPipe, ExecutionContext context)
at System.Management.Automation.AssignmentStatementNode.Execute(Array input, Pipe outputPipe, ExecutionContext context)
at System.Management.Automation.StatementListNode.ExecuteStatement(ParseTreeNode statement, Array input, Pipe outputPipe, ArrayList& resultList,     ExecutionContext context)

而且,我已经安装了Microsoft.SystemCenter.VirtualMachineManager.如果我手动将其输入到2008R2计算机上的power-shell控制台,该脚本也可以工作.

对于我可能遗失的任何想法,你能帮忙吗？

非常感谢.

Answer 1

发生这种情况是因为powershell管理单元元数据记录在注册表中.在您的情况下,这意味着管理单元信息仅在注册表中的32位软件配置单元中可用.通常,使其可用的技巧是使用64位版本的.NET框架的installutil.exe(在framework64目录中)来注册它,但有时它只是32位的原因.它可能取决于64位环境中不可用的32位COM对象.

所以你有两种方法:

1)使用installutil.exe/i注册管理单元64位(不太可行)

要么

2)仅通过VS项目属性(anycpu - > x86)将.NET exe作为32位目标

要么

3)将您的工作包装成如下脚本:http://www.nivot.org/blog/post/2012/12/18/Ensuring-a-PowerShell-script-will-always-run-in-a- 64位-壳

-Oisin