File download with speed limit

Today I have create a script as like rapidshare file download with speed limit.
Script:

Restict the download on the linospeed

Create Bit.ly, TinyURL, Is.Gd, U.Nu and Won Short URLs Using PHP - API

I have create the process on script:
1. Bit.ly Short URLs Using PHP API,
2. TinyURL Short URLs Using PHP,
3. Is.Gd Short URLs Using PHP
4. U.Nu Short URLs Using PHP, 5. Won Short URLs Using PHP