Powershell and System.Security.Cryptography.X509Certificates.X509Certificate2

Question

i'm getting this error when i run the system.security namespace. This is what i am running after

$cert=New-Object System.Security.Cryptography.X509Certificates.X509Certificate2("C:\mycert.cer")

New-Object: Cannot find type [System.Security.Cryptography.X509Certificates.X509Certificate2("C:\mycert.cer")]: make sure the assembly containing this type is loaded. 
At line:1 char:19
    + $cert = New-Object <<<<
    + CategoryInfo          : InvalidType: (:) [New-Object], PSArgumentException
    + FullyQualifiedErrorId : TypeNotFound,Microsoft.PowerShell.Commands.NewObjectCommand**

What am i doing wrong?

Answer 1

Try running this to see if you have the System.dll loaded (should be by default):

[AppDomain]::CurrentDomain.GetAssemblies() | 
    Where {$_.Location -match '\\System\\'}

If it is loaded then this command should show the X509Certificate2 type:

[AppDomain]::CurrentDomain.GetAssemblies() | 
Where {$_.Location -match '\\System\\'} | 
%{$_.GetExportedTypes()} | Where {$_.Name -match 'X509Cert'}

If the System.dll isn't loaded (which would be odd) try loading it:

Add-Type -AssemblyName System

See: http://technet.microsoft.com/en-us/library/hh849914.aspx

Answer 2

I've solved my problem. It's easily:

cd\
$cert=New-Object System.Security.Cryptography.X509Certificates.X509Certificate2("C:\mycert.cer")

cd\ is necessary