DOCUMENT:Q145661 17-JUN-2002 [iis] TITLE :PRB: Specified CGI Application Misbehaved PRODUCT :Internet Information Server PROD/VER::1.0,3.0,4.0,5.0 OPER/SYS: KEYWORDS:kbCGI ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Internet Information Server versions 1.0, 3.0, 4.0, 5.0 ------------------------------------------------------------------------------- SYMPTOMS ======== When you use a Common Gateway Interface (CGI) application with Microsoft Internet Information Server (IIS), the following error message appears: CGI Error: The specified CGI application misbehaved by not returning a complete set of HTTP headers. The headers it did return are: CAUSE ===== This error is caused by the return of an incomplete or incorrect set of headers by the CGI application. The CGI application may be written incorrectly. As well, logic errors, API failures, or anything that causes the CGI application malfunction can also cause this error. RESOLUTION ========== Modify the source code for the CGI application header output. The following is an example of a correct header: print "HTTP/1.0 200 OK\n"; print "Content-Type: text/html\n\n\n"; If the CGI is written in C++, it is possible to debug the application and ascertain the problem. Instructions can be found in following article: Q238788 How to Debug CGI Applications Running Under IIS Additional query words: prodiis ====================================================================== Keywords : kbCGI Technology : kbiisSearch kbiis500 kbiis400 kbiis300 kbiis100 Version : :1.0,3.0,4.0,5.0 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 2002.