TrafficToll is described as 'allows you to limit download and upload bandwidth globally (per interface) and per process, even during the process' runtime' and is an app in the OS & Utilities category. There are three alternatives to TrafficToll for Linux, Windows and Xfce. The best alternative is NetLimiter. It's not free, so if you're looking for a free alternative, you could try trickle or Wonder Shaper.
NetLimiter is an ultimate Internet traffic control and monitoring tool designed for Windows. You can use NetLimiter to set download/upload transfer rate limits for applications or even single connection and monitor their Internet traffic.
trickle works by taking advantage of the unix loader preloading. Essentially it provides, to the application, a new version of the functionality that is required to send and receive data through sockets.