Summary of IIS error codes

400 the request cannot be parsed.
401.1 unauthorized: access is denied due to invalid creden.
401.2 unauthorized access: access is denied due to server configuration preference to use alternative authentication methods.
401.3 unauthorized: access to requested resources is denied due to ACL settings.
401.4 unauthorized: the filter installed on the Web server fails to be authorized.
401.5 unauthorized: The ISAPI/cgi application fails to be authorized.
401.7 unauthorized: access is denied due to the URL Authorization Policy on the Web server.
403 Access prohibited: access is denied.
403.1 Access prohibited: Access denied.
403.2 Access prohibited: Read access is denied.
403.3 Access prohibited: Write access is denied.
403.4 forbidden access: use SSL to view the resource.
403.5 forbidden access: use SSL 128 to view the resource.
403.6 Access prohibited: the client's IP address is denied.
403.7 Access prohibited: An ssl client certificate is required.
403.8 Access prohibited: the client's DNS name is denied.
403.9 Access prohibited: too many clients attempt to connect to the web server.
403.10 Access prohibited: the Web server is configured to reject access requests.
403.11 Access prohibited: the password has been changed.
403.12 Access prohibited: the server certificate er rejects access to the client certificate.
403.13 Access prohibited: the client certificate has been revoked on the Web server.
403.14 forbidden access: the directory list has been denied on the Web server.
403.15 Access prohibited: the Web server has exceeded the Client Access License limit.
403.16 Access prohibited: the client certificate format is incorrect or is not trusted by the Web server.
403.17 Access prohibited: the client certificate has expired or has not yet taken effect.
403.18 Access prohibited: the requested URL cannot be executed in the current application pool.
403.19 Access prohibited: CGI cannot be executed for the client in the application pool.
403.20 Access prohibited: Passport Logon Failed.
404 the file or directory cannot be found.
404.1 file or directory not found: the website cannot be accessed on the requested port.
Note that the 404.1 error only appears on a computer with multiple IP addresses. If the client request is received on a specific IP Address/Port Combination and the IP address is not configured to listen on the specific port, IIS returns the 404.1 HTTP Error. For example, if a computer has two IP addresses and only one of them is configured to listen on port 80, any request received from port 80 from another IP address will cause IIS to return the 404.1 error. This error should be set only at this service level, because it is returned to the client only when multiple IP addresses are used on the server.

0105 the index is out of the range. The array index is out of range.

The 0106 type does not match. An unprocessed data type is encountered.

0107 the data size is too large. The data size sent in the request exceeds the allowed limit.

0108 failed to create the object. An error occurred while creating the object '% s.

0109 the Member is not found.

0110 Unknown name.

0111 unknown interface.

0112 the parameter is missing.

0113 the script times out. Exceeds the maximum running time of the script. You can change this restriction by specifying a new value for the server. scripttimeout attribute or modifying the value in IIS management tools.

0114 objects cannot be used in free threads. The application object only accepts free thread objects, while the object '% s' cannot be used for free threads.

0115 Unexpected error. A captured error (% x) occurs in the external object ). The script cannot continue running.

0116 the end mark of the script separator is missing. The script block is missing the script end mark (%> ).

0117 the script end mark is missing. The script block lacks the script end mark (</SCRIPT>) or the end symbol (> ).

0118 the end mark of an object is lost. The object block lacks the end mark (</Object>) or end symbol (> ).

0119 the classid or progid attribute is lost. Object instance' | 'requires a valid classid or progid in the object tag.

0120 the runat attribute is invalid. The runat attribute of the script tag or OBJECT tag can only have the 'server' value.

0121 the range in the object tag is invalid. The target instance '|' cannot be an application or session. To create an object instance with a session or application scope, add the object tag to the Global. Asa file.

0122 the range in the object tag is invalid. Object instance '|' must have application or session scope. This applies to all objects created in the global. Asa file.

0123 the ID attribute is missing. The ID attribute required for object marking is missing.

0124 the language attribute is lost. The language attribute required for object marking is missing.

0125 The attribute end mark is missing. '|' Property value does not have an ending separator.

0126 the include file is not found. The include file '|' is not found '.

0127 the HTML comment end mark is missing. HTML comments or files on the server end lack the end mark (--> ).

0128 file or virtual attributes are lost. The include file name must be specified using the file or virtual attribute.

0129 unknown scripting language. Script language not found on the server

0130 the file attribute is invalid. The file attribute '|' cannot start with a slash or backslash.

0131 the parent path is not allowed. Include File '|' cannot contain '..' to indicate the parent directory.

0132 compilation error. Unable to process active server page' | '.

0133 the classid attribute is invalid. The object tag has an invalid classid '| '.

0134 the property progid is invalid. The object has an invalid progid '| '.

0135 contains loops. File '|' contains itself (may not be directly included ). Check other include statements in the include file.

0136 the object instance name is invalid. Object instance '|' tries to use a reserved name. This name is used by internal objects of Active Server Pages.

0137 the global script is invalid. The script block must be one of the allowed global. Asa processes. Script Commands cannot be used in the global. Asa file <%... %>. The allowed process names are application_onstart, application_onend, session_onstart, and session_onend.

0138 nesting of script blocks. The script block cannot be placed in another script block.

0139 nested objects. The object tag cannot be placed in another object tag.

The order of commands on the 0140 page is incorrect. @ The command must be the first command in the Active Server Page.

The 0141-page command is repeated. @ Command can only be used once in Active Server Page.

0142 thread token error. The thread token cannot be opened.

0143 the application name is invalid. No valid application name is found.

0144 initialization error. Page-level Object List fails during initialization.

0145 new application failed. A new application cannot be added.

0146 new session failed. A new session cannot be added.

0147 500 server error.

0148 the server is too busy.

0149 restarting the application. Requests cannot be processed during application restart.

0150 application directory error. The application directory cannot be opened.

0151 incorrect change notification. A change notification event cannot be created.

0152 security error. An error occurred while processing user security creden.

0153 thread error. The new thread request has failed.

0154 HTTP header write error. The HTTP header cannot be written to the client browser.

0155 page content writing error. Page content cannot be written to the client browser.

0156 Header error. The HTTP header has been written to the client.

0157 enable buffering. The buffer cannot be disabled after it is enabled.

0158 URL loss. URL is required.

0159 the buffer is disabled. Buffer must be enabled.

0160 log record error. Failed to write the entry into the log.

0161 data type error. Failed to convert variant to string variable.

0162 the cookie cannot be modified. The cookie 'aspsessionid' cannot be modified '. It is a reserved cookie name.

0163 the comma usage is invalid. You cannot use commas (,) in log entries. Select another separator.

The 0164 timeout value is invalid. The specified timeout value is invalid.

0165 sessionid error. The sessionid string cannot be created.

0166 the object is not initialized. Attempts to access uninitialized objects.

0167 Session Initialization error. An error occurred while initializing the session object.

0168 forbidden objects. Internal objects cannot be saved in session objects.

0169 the object information is missing. The Session object cannot save objects with incomplete information. The thread model information of the object.

0170 session deletion error. The session cannot be deleted correctly.

0171 path loss. The path parameter must be specified for the mappath method.

0172 the path is invalid. The path of the mappath method must be a virtual path. An actual path is used.

Path character 0173 is invalid. An invalid character is specified in the path parameter of the mappath method.

More than 0174 path characters are invalid. Invalid '/' or '\' is specified in the path parameter of the mappath method '\\'.

0175 not allowed path characters. The '..' character is not allowed in the path parameter of the mappath method.

0176 no path found. The path parameter of the mappath method does not match the known path.

0177 server. Createobject failed. % S

0178 server. Createobject access error. Failed to call server. Createobject when checking the permission. Access to this object is denied.

0179 application initialization error. An error occurred while initializing the application object.

0180 forbidden objects. Internal objects cannot be saved in the Application object.

0181 the thread model is invalid. Objects using the unit thread model cannot be stored in the Application object.

0182 the object information is lost. Objects with incomplete information cannot be saved in the Application object. The thread model information of this object is required.