Control RFC 1323 Time Stamp and Window Scaling (Windows NT/2000/XP)
Category: Home > Network > Protocols > TCP-IP
This setting controls RFC 1323 timestamps and window scaling options. Timestamps and Window scaling are enabled by default, but can be manipulated with flag bits.
This feature has four modes of operation:
- 0 = disable RFC 1323 options
- 1 = window scale enabled only
- 2 = time stamps enabled only
- 3 = both options enabled
Open your registry and find the key below.
Create a new DWORD value named "Tcp1323Opts" and set it to equal 0, 1, 2 or 3 depending on the required mode listed above.
Restart Windows for the change to take effect.
 |  |  |  |  |
|  | (Default) | REG_SZ | (value not set) | |
|  | Tcp1323Opts | REG_DWORD | 0x00000003 (3) | |
 |
| HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip\Parameters |  |
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| Settings: |
System Key: [HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip\Parameters]
Name: Tcp1323Opts
Type: REG_DWORD (DWORD Value)
Value: 0,1,2 or 3
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Related Tweaks
Disclaimer: Modifying the registry can cause serious problems that may require you to reinstall your operating system. We cannot guarantee that problems resulting from modifications to the registry can be solved. Use the information provided at your own risk.
Last Modified: August 20, 2002
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