AbsoluteUpload Description:

AbsoluteUpload is a true .NET component that allows any .NET application to upload files to RFC 1867 compliant web servers and to POST data to dynamic web pages as a standard web browser do. Only a couple of line code is necessary to implement reliable upload capabilities in your application. The component natively supports asynchronous upload (with the ability to receive progression events), allowing your application to process another job at the same time and giving a better end-users experience.
Furthermore, the component allows a very easy implementation in your VB.NET and C# projects thanks to the .NET IDE integration.