Internet speed booster softwares to increase speed

Hi friends,
Is there any internet speed booster softwares to increase internet speed ?
My internet speed is slow, I am connecting internet on computer through broadband, but the bandwidth is too slow. I tried to clear all backdoor usages but no effect. How can I overcome this shortfall. Is there any software to increase the speed of the internet.
Please help,
Freddie C Slater
