DOCUMENT:Q245099 01-JAN-2000 [iis] TITLE :Content Location Does Not Return the Port Number Is Not 80 PRODUCT :Internet Information Server PROD/VER:winnt:4.0,5.0 OPER/SYS: KEYWORDS:kbiis400 kbiis500 ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Internet Information Server versions 4.0, 5.0 ------------------------------------------------------------------------------- SYMPTOMS ======== When you make a request to a Microsoft Internet Information Server (IIS), if the IIS is setup to use Default.htm as the default document (or any other HTML document), the resulting "content location" is returned to the client. However, when IIS is setup to use Default.asp as the default document (or any other .asp document), then the "content location" header is not sent to the client in the response from the server. This behavior is by design. CAUSE ===== The content-location is an optional entity-header field. It is used to define meta- information about the entity-body with information about the resource identified by the request. When the Default document is an HTM file IIS returns the content location header. When the Default document is an ASP file it is processed by an ISAPI (ASP.dll) and even though it is a Microsoft DLL it still does processing on behalf of the Web developer. This is very similar to the concept that as a "CGI application" all CGI applications are required to build their own headers. RESOLUTION ========== Adding the following ASP code inserts the content-location header into the default ASP document: <% Response.AddHeader("Content-Location","http://" + Request.ServerVariables("HTTP_HOST") + ":" + Request.ServerVariables("SERVER_PORT") + Request.ServerVariables("SCRIPT_NAME"));%> REFERENCES ========== For additional information, please see the following article(s) in the Microsoft Knowledge Base: Q218180 Internet Information Server Returns IP Address in HTTP Header (Content-Location) Q244998 Port Number Is Not Returned with Content Location when Specified by URL Additional query words: ====================================================================== Keywords : kbiis400 kbiis500 Technology : kbiisSearch kbiis500 kbiis400 Version : winnt:4.0,5.0 Issue type : kbprb ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2000.