I've seen your video. It's very impressed. I'm developing POS application on Windows XP Pro platform. I've installed POS for .NET 1.1 on my box and I've got VS Studio 2005. I followed what you did in the video but I got an unhandled exception of type System.Reflection.TargetInvocationException occurred in  mscorlib.dll (on the line that does type conversion - "display = (LineDisplay) explorer.CreateInstance(device)).

Can you help me on what I did wrong?

Or is there any POS for .NET document or example for WinXP Pro or even on WePOS itself?