Web Agent Guides › Web Agent Configuration Guide › Manage User Access with IIS › How to Configure the NT Challenge/Response Authentication (IIS Only) › Map the .NTC File Extension

Map the .NTC File Extension

You must map the .NTC file extension to the ISAPIWebAgent.dll application to configure tNT Challenge/Response Authentication on the IIS Web Server.

To map the .NTC file extension

1. Open the Internet Services Manager.
2. Right-click Web Sites in the left pane, and then right click Default Web Site in the right pane and select Properties.

   The Default Web Site Properties dialog appears.

3. Click the Home Directory tab.
4. In the Application Settings group box, click Configuration.

   The Application Configuration dialog appears.

5. Click Add.

   The Add/Edit Application Extension Mapping dialog opens.

   1. In the Executable field, click Browse and locate the following file: web_agent_home/bin/ISAPIWebAgent.dll.
   2. Click Open.
   3. In the Extension field, enter .ntc.
6. Click OK three times.

   The Add/Edit Application Extension Mapping dialog, the Application Configuration dialog and the Default Web Site Properties dialog close. The .ntc file extension is mapped.