NoteHKLM\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
| Data type | Range | Default value |
|---|---|---|
| REG_DWORD | 0 | 1 | 0 |
Determines which mode TCP uses for urgent data. The two mechanisms interpret the urgent pointer in the TCP header and the length of the urgent data differently. The two modes do not interoperate.
| Value | Meaning |
|---|---|
| 0 | TCP uses the mode used by BSD-derived systems. |
| 1 | TCP uses the RFC 1122 specification for urgent data. |
Note
Windows 2000 does not add this entry to the registry. You can add it by editing the registry or by using a program that edits the registry.