How to upload files from browser to server running classic ASP and detect, server side, if the files are valid pictures? For valid pictures, how to get their dimensions?Usually file upload in classic ASP is done by third party components which come with a DLL file and requires registration on the server, sometimes also cost money. Needless to say many hosts won't allow third party components due to security reasons.There are great many pure ASP upload scripts already, but they only take the file and save to server disk, no image detection whatsoever.Below is my own script written for the above purpose but of course more answers are always welcome with alternatives or better ways.