cFosSpeed v5, the best internet traffic shapping

From cFos Software GmbH :Internet Acceleration with Traffic Shaping and bandwidth management. Ping optimizer plus packet prioritization. Maximum Download and Minimum Ping. For DSL, ADSL, VDSL, Cable, Modem, ISDN, Mobile (GSM, GPRS, HSCSD, UMTS, HSDPA), Filesharing (P2P), Online Games, VoIP, Streaming Media and Tuning. Version 4.50 build 1456 adds new skin: "LC History", adds Layer-7 detection for large HTTP downloads (client & server), speeds memory allocation, and improves detection of packets that NDIS sends erroneously to cFosSpeed.

How does Traffic Shaping work?
(http://www.cfos.de/traffic_shaping/traffic_shaping_e.htm)

cFos Traffic Shaping reduces delays during data transfer and allows you to surf the Internet up to three times faster. So you can use the full bandwidth of your connection!

During TCP/IP transfer, a certain amount of data needs to be confirmed upon reception before more can be sent. Stalling data confirmation results in delays and transfer-rate slowdowns, thus forcing the sender to wait. Especially for DSL and cable, it is possible to slow a download to a crawl by choking the upstream channel (which has the smaller bandwidth anyway) with an upload. This is because in such a scenario there is not enough upstream bandwidth left for data confirmation.

The standard solution so far has been to try and compensate for this by increasing TCP window size, thereby allowing more data to be sent without immediate confirmation. The main problem here is that this also leads to high ping times (latency) and significant delays during Webpage rendering. Latency of up to 2 seconds is not uncommon for TCP windows with a size of 64k. In short, huge window sizes just won´t let you achieve full download speed.

By contrast, cFos Traffic Shaping prioritizes data traffic in such a fashion that important packets zip past regular packets. This way, receipts always arrive in time, and uploads won’t ever choke your broadband connection again! cFos Traffic-Shaping technology recognizes a number of important packet types and prioritizes them not only to keep Internet traffic running smoothly but also to ensure particularly low ping times. This not only accelerates surfing and download speeds significantly, but it is also a decisive advantage for online gaming.