La dll de carga de PowerShell obtuvo un error: Agregar tipo: no se pudo cargar el archivo o el ensamblaje 'WebDriver.dll' o una de sus dependencias. La operación no es compatible

Quiero usarPowerShell conselenium y descargar selenio desdehttp://www.java2s.com/Code/Jar/s/Downloadseleniumremotedriver2350jar.htm . Cuando intento cargar una de las dlls, tengo errores. Espero que alguien me pueda ayudar con eso.

Esta es la información de mi sistema.

OS Name:                   Microsoft Windows 7 Enterprise
OS Version:                6.1.7601 Service Pack 1 Build 7601
OS Manufacturer:           Microsoft Corporation

Esta es mi información de PowerShell.

PS C:\Users\test\Downloads\selenium-dotnet-2.35.0\net40> $psversiontable

Name                           Value
----                           -----
PSVersion                      4.0
WSManStackVersion              3.0
SerializationVersion           1.1.0.1
CLRVersion                     4.0.30319.18052
BuildVersion                   6.3.9421.0
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0}
PSRemotingProtocolVersion      2.2


PS C:\Users\test\Downloads\selenium-dotnet-2.35.0\net40>

Estos son los errores que recibí al intentar cargar la DLL.

    PS C:\Users\test\Downloads\selenium-dotnet-2.35.0\net40> Add-Type -Path .\WebDriver.dll
    Add-Type : Could not load file or assembly 'file:///C:\Users\test\Downloads\selenium-dotnet-2.35.0\net40\WebDriver.dll' or one of its dependencies. Operation is
    not supported. (Exception from HRESULT: 0x80131515)
    At line:1 char:1
    + Add-Type -Path .\WebDriver.dll
    + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        + CategoryInfo          : NotSpecified: (:) [Add-Type], FileLoadException
        + FullyQualifiedErrorId : System.IO.FileLoadException,Microsoft.PowerShell.Commands.AddTypeCommand

    PS C:\Users\test\Downloads\selenium-dotnet-2.35.0\net40> [reflection.assembly]::LoadFrom(".\WebDriver.dll")
    Exception calling "LoadFrom" with "1" argument(s): "Could not load file or assembly 'file:///C:\Users\test\WebDriver.dll' or one of its dependencies. The system
    cannot find the file specified."
    At line:1 char:1
    + [reflection.assembly]::LoadFrom(".\WebDriver.dll")
    + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
        + FullyQualifiedErrorId : FileNotFoundException

    PS C:\Users\test\Downloads\selenium-dotnet-2.35.0\net40> [reflection.assembly]::LoadFrom("WebDriver.dll")
    Exception calling "LoadFrom" with "1" argument(s): "Could not load file or assembly 'file:///C:\Users\test\WebDriver.dll' or one of its dependencies. The system
    cannot find the file specified."
    At line:1 char:1
    + [reflection.assembly]::LoadFrom("WebDriver.dll")
    + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
        + FullyQualifiedErrorId : FileNotFoundException

    PS C:\Users\test\Downloads\selenium-dotnet-2.35.0\net40> [reflection.assembly]::LoadFrom("C:\Users\test\Downloads\selenium-dotnet-2.35.0\net40\WebDriver.dll")
    Exception calling "LoadFrom" with "1" argument(s): "Could not load file or assembly 'file:///C:\Users\test\Downloads\selenium-dotnet-2.35.0\net40\WebDriver.dll' or
    one of its dependencies. Operation is not supported. (Exception from HRESULT: 0x80131515)"
    At line:1 char:1
    + [reflection.assembly]::LoadFrom("C:\Users\test\Downloads\selenium-dotnet-2.35.0 ...
    + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
        + FullyQualifiedErrorId : FileLoadException

    PS C:\Users\test\Downloads\selenium-dotnet-2.35.0\net40> [reflection.assembly]::LoadFile("C:\Users\test\Downloads\selenium-dotnet-2.35.0\net40\WebDriver.dll")
    Exception calling "LoadFile" with "1" argument(s): "An attempt was made to load an assembly from a network location which would have caused the assembly to be sandboxed

 in previous versions of the .NET Framework. This release of the .NET Framework does not enable CAS policy by default, so this load may be dangerous. If
    this load is not intended to sandbox the assembly, please enable the loadFromRemoteSources switch. See http://go.microsoft.com/fwlink/?LinkId=155569 for more
    information."
    At line:1 char:1
    + [reflection.assembly]::LoadFile("C:\Users\test\Downloads\selenium-dotnet-2.35.0 ...
    + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
        + FullyQualifiedErrorId : NotSupportedException

    PS C:\Users\test\Downloads\selenium-dotnet-2.35.0\net40>

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