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 ADSL, 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.
cFosSpeed 4.25 build 1454
x Added better handling of multiple but different SYN segments and improved
recovery after ACK for unsent data. Thanks to khashayar zayyani for help.
Beta Changes:http://www.cfos.de/beta/speed_whatsnew.txt
What's New:http://www.cfos.de/speed/whatsnew.shtml
Home:http://www.cfos.de/speed/cfosspeed_cn.htm
Support Windows Vista/2003 Server/XP/2000
v4.25 build 1454 Beta Official Download：
32-bit：http://www.cfos.de/beta/cfosspeed-v425-build1454.exe
64-bit：http://www.cfos.de/beta/cfosspeed-x64-v425-build1454.exe
v4.24 Build 1420 Fianl Official Download：
32-bit：http://www.cfos.de/cfosspeed-v424.exe
64-bit：http://www.cfos.de/cfosspeed-x64-v424.exe
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