Bandwidth Limiter for XP and Win7

Only serious bidders under my budget please >>>I need a Bandwidth limiter to limit the internet bandwidth in each pc in my internet café. (not a Server-Client Program) >>>It should not affect in local data transfer between server and client. >>>The software should be Password Protected to make any changes in bandwidth limiting. >>>It should be very easy to change the required bandwidth, just with the option to change in Mb and kb for uploads and downloads. For eg., If I need to set 1mbps download speed for a machine, I must be able to select Mb or Kb from dropdown list then enter the value. And same for the uploads. >>>The Program should not be listed in All Programs, System tray, desktop, Quick Launch or anywhere. It should be accessed only from the installed location (eg., C:\Program Files) >>>Installing the software in the pc should also set specified Home Page for all the Browsers installed in the pc. It should also apply the homepage settings to the newly installed browsers. (Browsers which may be installed later to our software installation in the same pc). >>>Even if the home page is changed manually in any browser, the software should be able to set the default home page (Which was set by us) on the restart of the browser. >>>This software should be able to overlap any other software or from any Tool bar which sets homepage for any browsers. >>> For Xp and win7 I don’t want the software to eat any unwanted RAM space. No Part payments please. Payments will be made in full once the software is complete.