Easy to Integrate ASP File Upload Class with status info

UPDATED 03/JAN/2010: This is a file upload class with a demo page. Very easy to integrate into existing projects, it only requires three steps. The code is nicely commented and formatted. I've also added JavaScript code that disables the Submit button and shows an image and message informing about the upload. If you use Norton AntiVirus you will need to disable your Script Blocking for the file writting to work. The code can support uploads of up to 2GB or so, but I've only tested it with files of up to 30MB. It also supports the configuration of allowed extensions for more security. If you like this code, please vote. Last Update: Added code that takes care of a IIS vulnerability involving semicolons in file names (extremely important!).