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(Windows NT/2000) Popular
This parameter determines the maximum TCP receive window size offered by the system. The receive window specifies the number of bytes a sender may transmit without receiving an acknowledgment.
In general, larger receive windows will improve performance over high delay, high bandwidth networks. For greatest efficiency, the receive window should be an even multiple of the TCP Maximum Segment Size (MSS).
Reducing the TCP Window size effectively causes an acknowledgment to be sent to the sender for data received sooner. This will lower the possibility that the sender will time out while waiting for an acknowledgment. However it will also increase the amount of network traffic and cause slower throughput.
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|  | (Default) | REG_SZ | (value not set) | |
|  | TcpWindowSize | REG_DWORD | 0x00002238 (8760) | |
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| HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\P... |  |
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| Registry Settings |
System Key: [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters]
Value Name: TcpWindowSize
Data Type: REG_DWORD (DWORD Value)
Value Data: 0 - 0xFFFF (default = 8760 for Ethernet)
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Last Modified: March 22, 2002
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