Help ! Where I can find SerialPort class?

I see examples using System.IO.Ports … but I haven’t this assembly on my 4.1 installation … I’m not searching for Gadgeteer.Interface.
Where I can find it ?

Thanks Mike, but I’m not searching docs, I’m searching for the assembly DLL … I haven’t in my system, it seems ! My System.IO doesn’t have Ports namespace, and can’t find System.IO.Ports.DLL …

PS: Sorry for some reason VS get crazy. Restarting it, now I see the namespace …

See “Assembly:” :wink:

I got it, but VS got crazy for some reason and loose some namespaces … now it’s ok. Thanks.