I am working on a POS system for my company and they want to use or create a new polling system from what they are using now, it is currently being done in DOS. I need to find a strong windows-based communications package that supports user scripting and VB.NET that can perform polling through a modem. Does anyone know of any free 3rd party .NET controls or package that can help me either create a new system, or provide me with a new system. If I create the system it will be in VB.NET using VS2005. I've seen a lot of companies offer to sell their polling systems, however my company doesn't want to go that route. They want something either customized or something very general that can be customized and most importantly free.