This identifier enables Microsoft® Windows NT® Challenge/Response authentication processing.
| Data type | DWORD |
| Default inheritance | Inheritable |
| User type | IIS_MD_UT_SERVER |
This identifier is available at the following metabase keys:
| Metabase Path | Key Type |
|---|---|
| /LM/W3SVC | IIsWebService |
| /LM/W3SVC/n | IIsWebServer |