如何使用Add-Type加载Microsoft.Web.Deployment？

Question

我正在编写一些使用MSDeploy应用程序接口的PowerShell脚本。我可以使用以下命令加载程序集

[System.Reflection.Assembly]::LoadWithPartialName("Microsoft.Web.Deployment")

位置在GAC中

PS > [System.Reflection.Assembly]::LoadWithPartialName("Microsoft.Web.Deployment") | fl Location

Location : C:\Windows\assembly\GAC_MSIL\Microsoft.Web.Deployment\7.1.0.0__31bf3856ad364e35\Microsoft.Web.Deployment.dll

但是，我无法使用Add-Type加载程序集。我收到一个错误，说找不到程序集，并且缺少一个或多个程序集。

PS > Add-Type -AssemblyName Microsoft.Web.Deployment
Add-Type : Cannot add type. The assembly 'Microsoft.Web.Deployment' could not be found.
At line:1 char:9
+ Add-Type <<<<  -AssemblyName Microsoft.Web.Deployment
    + CategoryInfo          : ObjectNotFound: (Microsoft.Web.Deployment:String) [Add-Type], Exception
    + FullyQualifiedErrorId : ASSEMBLY_NOT_FOUND,Microsoft.PowerShell.Commands.AddTypeCommand

Add-Type : Cannot add type. One or more required assemblies are missing.
At line:1 char:9
+ Add-Type <<<<  -AssemblyName Microsoft.Web.Deployment
    + CategoryInfo          : InvalidData: (:) [Add-Type], InvalidOperationException
    + FullyQualifiedErrorId : ASSEMBLY_LOAD_ERRORS,Microsoft.PowerShell.Commands.AddTypeCommand

如何使用Add-Type加载Microsoft.Web.Deployment？

Answer 1

PowerShell只允许通过部分/简单名称加载特定的预定义程序集。你需要通过它的完全限定名来加载它，例如：

Add-Type -AssemblyName ('Microsoft.Web.Deployment, Version=7.1.0.0, ' +
                        'Culture=neutral, PublicKeyToken=31bf3856ad364e35')