You can improve the speed of your Net without any third party solution, all you have to do that
Go to : Start/Run and type "gpedit.msc without quotes. Then you can see a window called the "Group Policy Editor" in that
Go to : Local Computer Policy/Administrative Templates/Network/QoS Packet Scheduler in that window after selecting QoS Packet Scheduler, you can see "Limit reservable bandwidth" at the right side of the Window. Then Select "Limit reservable bandwidth" and right click on it and select properties and a Pop up window will appear in that, Check on "Enabled" and then change the value of the Bandwidth Limit % to 0%, and "Apply" and "OK". After please restart the system, you will have some better result.