DFueTweaker 1.005 (Windows 95, 98, Me, NT, 2000 and XP )

DFueTweaker will speed your DUN connection by setting the MTU, MSS, RWIN and NDI cache size, and the TTL and Black Hole detection. You can automatically or manually configure your settings to allow for faster data transfer settings that are optimized for your computer. DFUeTweaker changes the un-optimized Windows settings to make your Internet fly like never before!

Tweaker