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regasm TestCOM.dll /tlb:TestCOM.tlb

$x = New-Object -com TemperatureComponent

Retrieving the COM class factory for component with CLSID {52645F0F-CBEA-3398-9B82-DD45EA0B6E5B} failed due to the following error: 80040154 Class not registered (E
xception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)). (raised by: New-Object)

using System;
using System.Windows.Forms;
using System.Runtime.InteropServices;
 
public enum WeatherIndications
{
    Sunny = 0, Cloudy,
}
 
[ClassInterface(ClassInterfaceType.AutoDual)]
public class TemperatureComponent
{
    public TemperatureComponent()
    {
        Temperature = 30.0f;
    }
 
    public float Temperature { get; set; }
 
    public void DisplayCurrentTemperature()
    {
        String strTemp = String.Format("The current temperature at Marlinspike is : {0:####} degrees fahrenheit", Temperature);
        MessageBox.Show(strTemp, "Today's Temperature");
    }
 
    public WeatherIndications GetWeatherIndications()
    {
        return Temperature > 70 ? WeatherIndications.Sunny : WeatherIndications.Cloudy;
    }
}