這是一個網路調速（優先權）的軟體，很好用的。

個人自從 3.x 版用到現在（我註冊 2 組序號。）

8.0 版有重大的更新，有使用的人快來更新吧。
沒使用的人，可以試用看看，應該可以令你滿意的。
（永久授權只要 299 台幣喔，如果要再省一點，等有特價時（我記得一個授權只要 179 元而已。）再註冊。）

官方原文：
Results of cFosSpeed RWIN-Expansion-Award 2012

A lot of users don't get the maximum speed available for their Internet connection. In many cases the TCP Auto-Tuning of Windows 7/ Windows Vista cannot use the full download speed. In other cases the downloading programs are not written for today's high speed connections. cFosSpeed's RWIN expansion now accelerates these downloads by dynamically expanding the receive window size of the TCP connection to a value suitable for the current connection. This leads to unexpected speed improvements!
For example, we could double the download speed with Internet Explorer and nearly triple the speed of mobile UMTS downloads.

To demonstrate these dramatic speed improvements we (with the help of our users) compiled a list of scenarios in which the new cFosSpeed RWIN Expansion achieves these huge speed improvements.

官網： cFosSpeed - 藉由「通信量調整」更快地存取網際網路 - 網際網路加速器 + Ping 最佳化程式 - cFos Software GmbH