HTTP File Upload ActiveX Control is the best solution for your web sites to upload thousands of big files from a user machine to the web server via HTTP protocol.
Supports BreakPoint/break uploading, so if an upload fails before completion, it is resumed from the point of failure so time and bandwidth are never wasted.
This ActiveX Component is written in ATL, so is small(CAB file is only 51 KB, and it takes less than 12 seconds to load it via 56K modem).
Free trial for Windows 98/Me/2000/XP/2003.