This structure is used by the ServerSupportFunction HSE_REQ_SEND_RESPONSE_HEADER_EX. An ISAPI extension must fill the structure with the required data and return it to the IIS. You can use this structure to indicate that the connection that is being used to service the current request should be kept active for further processing.
typedef struct _HSE_SEND_HEADER_EX_INFO {
// HTTP status code and header
//
LPCSTR pszStatus; // HTTP status code eg: "200 OK"
LPCSTR pszHeader; // HTTP header
DWORD cchStatus; // number of characters in status code
DWORD cchHeader; // number of characters in header
BOOL fKeepConn; // keep client connection alive?
} HSE_SEND_HEADER_EX_INFO, * LPHSE_SEND_HEADER_EX_INFO;