In the last article, we dove into the internals of how PowerShell creates and defines objects. It doesn’t matter if it is the result from running Get-Process to a custom object from your function. You should be able to discover the hierarchy of PSBase, PSAdapted, PSExtended, and PSObject. I wrapped up the last article discussing the structure of PSObject.

PS C:\> $p = Get-Process -id $pid
PS C:\> $p.psobject.properties | Group-object MemberType -NoElement

Count Name
----- ----
    7 AliasProperty
    1 CodeProperty
   52 Property
    1 NoteProperty
    8 ScriptProperty

PS C:\> $p.psobject.properties | where Membertype -eq 'aliasproperty' | Select Name,ReferencedMemberName

Name    ReferencedMemberName
----    --------------------
Name    ProcessName
SI      SessionId
Handles Handlecount
VM      VirtualMemorySize64
WS      WorkingSet64
PM      PagedMemorySize64
NPM     NonpagedSystemMemorySize64

This is much easier than trying to parse the output from Get-Member. But how can you take advantage of PSObject? I thought I’d share some code that I use that does exactly that.