DSL Speed - Version 5.1 DSL Speed is a prefessional tool that will online smartoptimize your DSL (e.g., ADSL, G.lite,IDSL,SDSL)connectionspeed to MAX.Main Features: Online Verify Your ISP's MTU And Your DSL Unique Optimize Value. Online And Offline Optimize Your DSL Connection Speed To MAX. Faster loading Web Pages. Tweaks DNS Errors Caching In Windows 2000/XP. Tweaks ICS In Windows 98SE. DSL Speed is for DSL PPPOE only prefessional tool and does not support the PPPOA NOR modem dialup networking.