Q. How can I disable the RFC 1323 timestamp option on a Windows Server 2003 that is running the LPD service?

To disable the RFC 1323 timestamp option on a Windows Server 2003 that is running the LPD (Line Printer Daemon), you can set the Tcp1323Opts Value Name, a REG_DWORD data type, at HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Tcpip\Parameters, per the following:

0 - Disable RFC 1323 options.
1 - Window scale enabled only.
2 - Timestamps enabled only.
3 - Both options enabled.

To disable timestamps and Window scale:

REG ADD HKLM\System\CurrentControlSet\Services\Tcpip\Parameters /V Tcp1323Opts /T REG_DWORD /F /D 0

To disable time timestamps and enable Window scale:

REG ADD HKLM\System\CurrentControlSet\Services\Tcpip\Parameters /V Tcp1323Opts /T REG_DWORD /F /D 1

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