Upload Component information required.

Hi,
Is there any limit to asp fileupload component? because when i choose fat size file, it redirects me to web page not found error.
Do you know any upload component which is free, Good look(progress bar) etc  and can handle fat size files?
i need to upload minium 300 Mb file. My application is on local network, so guys please help me.


Thanks in advance.
...