in visual studio 2013, how can i get the list of all .net framework classes?

Hi friends

as we know in powershell we can work with .net classes.

but a problem:

in powershell 4.0 we use this command:

New-Object -typename System.Management.Automation.PSCredential

but when i tried to find this in visual studio 2013 & i expanded all items under system.management node one-by-one but i couldn't find it.