PowerShell: Function Get-LastUpdates shows most recent Windows updates

Function Get-LastUpdates {

    Param(
        [parameter(Position=0, Mandatory = $false)] [Int32] $DaysAgo = 0,
        [parameter(Position=1, Mandatory = $false)] [Int32] $LastNum
    )
    Process {
    
        $Session = New-Object -ComObject "Microsoft.Update.Session"
        $Searcher = $Session.CreateUpdateSearcher()
 
        if ($LastNum) {
            $historyCount = $LastNum
        } else {
            $historyCount = $Searcher.GetTotalHistoryCount()
        }
    
        # Limit the returned rows by $historyCount
        $HistItems = $Searcher.QueryHistory(0, $historyCount) 
 
     #$HistItems | ?{$_.Title -ne $null} |sort Date | Select-Object Date, Title, @{n="desc"; e={$_.Description.substring(0,10)}},  @{name="Operation"; expression={switch($_.operation){ 1 {"Installation"}; 2 {"Uninstallation"}; 3 {"Other"}}}}
     #$HistItems |select -First 1
        if ($DaysAgo -eq 0) {
            $HistItems | ?{$_.Title -ne $null} |sort Date | Select-Object Date, Title
        } else {
            $HistItems | ?{$_.Title -ne $null} | ?{$_.Date -gt (Get-Date).AddDays(-$DaysAgo) } |sort Date | Select-Object Date, Title
    
        }
        # https://itbeco.wordpress.com/microsoft/powershell/
        #Select-Object Date, @{expression={$COMPUTERNAME};Label="Host"}, @{name="Operation"; expression={switch($_.operation){1 {"Installation"}; 2 {"Uninstallation"}; 3 {"Other"}}}}, @{name="Status"; expression={switch($_.resultcode){1 {"In Progress"}; 2 {"Succeeded"}; 3 {"Succeeded With Errors"};4 {"Failed"}; 5 {"Aborted"}}}},@{name="Title";expression={[regex]::Match($_.Title,'(KB[0-9]{6,7})').Value}}
    }
}

And to run from DOS

@ECHO OFF
 
if {%1}=={} (
@ECHO USAGE
@ECHO   GetLastUpdates DaysAgo
@ECHO.
GOTO :FINISHED
)


Powershell -noprofile -command "&{ . E:\MSSQL\PS\adhoc\Get-LastUpdates.ps1; Get-LastUpdates -DaysAgo %1 }

:FINISHED