in upload.asp is the core code and generally does not need to be modified unless otherwise required. demo.htm is a demonstration of the non-refresh progress bar (supported by IE5.5+) demo.asp processes the files uploaded by demo.asp. Due to demonstration needs, Demo.asp only uploads files without saving them. If you need to save them, just remove the relevant comments. Example_Normal.htm, a common upload example Example_Normal_RadomFilename.htm, an example of saving the uploaded file with a random file name Example_Progress.htm, an upload example with a progress bar Example_DataBase.htm, an example of saving uploaded files to the database, upload.mdb, a database that saves uploaded files, and UploadFile.asp is a program for downloading files uploaded to the database.