I've over 30 years design and development experience encompassing hardware and software. Here are some of the companies that have deployed products I've had lead or principle design and development involvement with- Currently I'm offering expertise in developing Windows Forms (GUI) apps using C# under DotNet. I've specific experience with threaded or background interactions with web based services using HTTP over WebClient through port 80 (the Browser port). This works well for those situations where apps need to interact from inside an enterprise network, behind a firewall or proxy. Other experience areas- If you have a coding, maintenance, modification or testing requirement I have relevant skills to offer...