Hello, I have a rather strange problem. I am trying to develop a little software for my PDA. It runs Windows CE 5.0 and I am using VS2005 and C# to develop the software. I wanted to implement a wifi signal strength icon, so therefor I wrote following code: AdapterCollection adapterList = Networking.GetAdapters(); Adapter adapter = null; foreach(Adapter adapter_item in adapterList){ if (adapter_item.IsWireless) { adapter = adapter_item; } } But I get a rather strange error message: It says there is no reference to OpenNETCF.IO. , which is true, I can not find it anywhere. (Well, yes I check where the other assemblies are, but OpenNETCF.IO is not there.) Your help will be really appreciated Thank you very much Taggert

OpenNETCF.IO is not an assembly, it's a namespace.  An assembly can contain many namespaces.  This specific namespace is in the OpenNETCF.dll assembly.

Maybe a dump question - but where do I get it?

You already have it since you are using the Smart Device Framework. It's in the same location as the OpenNETCF.Net.dll that you are using. By default, this is %ProgramFiles%\OpenNETCF\Smart Device Framework\2.2\bin\.  

Thank you very much - I got it now. You have saved my evening. Hope you get rid of me soon ;) Good night Taggert