Question about the example "HttpServer"

I was trying the example “HttpServer” from C:\Users\Tobi\Documents\Microsoft .NET Micro Framework 4.1\Samples\HttpServer in my computer.

I can load http://Device.Microsoft.Com, but I can not load https://Device.Microsoft.Com

I find that the certificate “Device.Microsoft.Com.cer” has expired. I have also checkt the certificate in “Microsoft .NET Micro Framework 4.2”, and the certificate has expired.

where can I get the valid certificate “Device.Microsoft.Com.cer”?