WWW Clients Using Basic Authentication May Fail with IIS 1.0

RESOLUTION

Microsoft has modified Internet Information Server 1.0 to send a Realm with all Basic Authentication challenge messages. By default, the Realm returned is the "host" (host header, DNS host name, or IP address), or you can set the Realm in the Registry.

To specify the Realm returned, use the following steps to edit the Microsoft Windows NT Registry:

WARNING: Using Registry Editor incorrectly can cause serious, system- wide problems that may require you to reinstall Windows NT to correct them. Microsoft cannot guarantee that any problems resulting from the use of Registry Editor can be solved. Use this tool at your own risk.

1. Obtain and apply the Realm fix for IIS version 1.0.
2. Run Windows NT Registry Editor (Regedt32.exe).
3. From the HKEY_LOCAL_MACHINE subtree, go to the following key:
   

         SYSTEM\CurrentControlSet\Services\W3SVC\Parameters
   
   						

4. Click Add Value on the Edit menu.
5. Use the following values:
   

         Value Name: Realm
         Data Type:  REG_SZ
         String:     <Specify the Realm to return>
   
   						

6. Close the Registry Editor.
7. Stop the World Wide Web Publishing Service.
8. Start the World Wide Web Publishing Service.