Paraben's I-Jolt - Version 2.85.52 Paraben's I-Jolt helps you optimize your Internet connection. By tweaking your Maximum Transmission Unit (MTU), Maximum Segment Size (MSS), Receive Window (RWIN), Time To Live (TTL), MTU Auto Discover, and Black Hole detection you can obtain faster throughput. If you don't know how to do this yourself, I-Jolt is the tool for you. Change these settings manually, one at a time, or select one of several buttons that change the settings as a group. The group settings include Optimal, Default, PPP, and more.