Consider the following scenario:

• You host a Common Gateway Interface (CGI) application on an Internet Information Services (IIS) 7.0 Web server.
• After the CGI application processes a request, the CGI application sets multiple instances of a response header as part of its response.

In this scenario, only the last instance of the response header is sent to the client.

For example, the CGI application sets multiple “Set-cookie” response headers. However, the client receives only the last cookie value.