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I have isolated a problem down to this:

On Windows XP Pro, SP2 if one does an experiment where one tries to open TCP/IP sockets in a loop (bascially, listen port 7000, listen port 7001, etc.)

After approx 649 open sockets, one will start getting errors: No buffer space available (maximum connections reached?)

The question is, what registry settings etc. does one edit to increase the number of listening sockets one can open before receiving this error?

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up vote 3 down vote accepted

Take a look to this page: http://smallvoid.com/article/winnt-tcpip-max-limit.html

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