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Is there a program for Windows that can selective limit bandwidth of a running process? Open source or freeware are preferable.

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closed as not constructive by Mokubai, Luke, 8088, KronoS, Indrek Sep 11 '12 at 21:20

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3 Answers

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I use NetBalancer. While its a paid software, a free version exists, but can restrict traffic on upto 5 processes at a time.

Net Balancer Free

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By default it doesn't monitor internal LAN transfers and it doesn't balance until 80% of the bandwidth is used. You can configure it though. – Jader Dias Jul 12 '11 at 20:16
This appears to work terribly bad on Windows XP. Instead of transparently narrowing the bandwidth, it appears to drop down packets/requests, half of times web pages won't open at all, displaying the default DNS search results instead, programs would go awry etc. – GSerg Apr 9 at 15:07
up vote 12 down vote

I use Net Limiter, which is free.

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.

Along with this unique feature, Netlimiter offers comprehensive set of internet statistical tools. It includes real-time traffic measurement and long-term per-application internet traffic statistics

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No, the lite/pro versions, which allow traffic limiting, aren't free. – demonkoryu Mar 28 at 10:34
This one, on contrary, works quite good on Windows XP. – GSerg Apr 9 at 15:29
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Internet facing router is a better place for traffic shapers, just like every entrance to VPN. PS i used to use netlimiter before installing alternate firmware on home gateway.

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What alternative firewall? how did you do this? your answer is very vague – Simon Sheehan Feb 25 '12 at 23:16
No traffic shaper supports IPv6 yet. – Ian Boyd Jun 20 '12 at 16:44

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