W3who.dll: Browser Client Context Tool

Server-only: This tool is included in the Windows 2000 Server Resource Kit only.

W3Who is an Internet Server Application Programming Interface (ISAPI) application dynamic-link library (DLL) that works within a Web page to display information about the calling context of the client browser and the configuration of the host server. The following information is displayed:

• Access token (the security context associated with the current request), including:
  
• List of security identifiers granted in this access token.
• List of privileges.
• List of environment variables transmitted by IIS to the ISAPI application. These variables include browser characteristics, client connection (remote IP address, remote user, keep-alive), client request (method, URL, software), and server characteristics (version, server name, server IP address, server port).

W3Who is useful in a testing environment for checking security and environment contexts.

W3Who Topics

• Installing and Configuring W3Who
• Using W3Who

File Required

• W3who.dll