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TcpMaxSendFree

Updated: March 28, 2003

Applies To: Windows Server 2003, Windows Server 2003 R2, Windows Server 2003 with SP1, Windows Server 2003 with SP2

TcpMaxSendFree

HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters

 

Data type Range Default value

REG_DWORD

0 - 65535

5000

Description

Sets the size limit of the TCP header resource. On computers with ample RAM, increasing this limit can improve responsiveness during a SYN flood denial-of-service attack.

Activation Method

You must restart the computer for changes to this entry to take effect.

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