| Event ID | Description |
| 100 | Out of memory - Unable to allocate required memory. |
| 101 | Unexpected error - The function returned |. |
| 102 | Expecting string input - The function expects a string as input. |
| 103 | Expecting numeric input - The function expects a number as input. |
| 104 | Operation not Allowed. |
| 105 | Index out of range - An array index is out of range. |
| 106 | Type Mismatch - An unhandled data type was encountered. |
| 107 | Stack Overflow - The data being processed is over the allowed limit. |
| 108 | Create object failed. An error occurred while creating object '%s'. |
| 109 | Member not found. |
| 110 | Unknown name. |
| 111 | Unknown interface. |
| 112 | Missing parameter. |
| 113 | Script timed out - The maximum amount of time for a script to execute was exceeded. You can change this limit by specifying a new value for the property Server.ScriptTimeOut or by changing the value in the IIS administration tools. |
| 114 | Object not free threaded - The application object accepts only free threaded objects; object '%s' is not free threaded. |
| 115 | Unexpected error - A trappable error (%X) occurred in an external object. The script cannot continue running. |
| 116 | Missing close of script delimiter - The Script block lacks the close of script tag (%>). |
| 117 | Missing close of script tag - The Script block lacks the close of script tag (</SCRIPT>) or close of tag symbol (>). |
| 118 | Missing close of object tag - The Object block lacks the close of object tag (</OBJECT>) or close of tag symbol (>). |
| 119 | Missing Classid or Progid attribute - The object instance '|' requires a valid Classid or Progid in the object tag. |
| 120 | Invalid Runat attribute - The Runat attribute of the Script tag or Object tag can only have the value 'Server'. |
| 121 | Invalid Scope in object tag - The object instance '|' cannot have Application or Session scope. To create the object instance with Session or Application scope, place the Object tag in the Global.asa file. |
| 122 | Invalid Scope in object tag - The object instance '|' must have Application or Session scope. This applies to all objects created in a Global.asa file. |
| 123 | Missing Id attribute - The required Id attribute of the Object tag is missing. |
| 124 | Missing Language attribute - The required Language attribute of the Script tag is missing. |
| 125 | Missing close of attribute - The value of the '|' attribute has no closing delimiter. |
| 126 | Include file not found - The include file '|' was not found. |
| 127 | Missing close of HTML comment~The HTML comment or server-side include lacks the close tag (-->). |
| 128 | Missing File or Virtual attribute - The Include file name must be specified using either the File or Virtual attribute. |
| 129 | Unknown scripting language - The scripting language '|' is not found on the server. |
| 130 | Invalid File attribute~File attribute '|' cannot start with forward slash or back slash. |
| 131 | Disallowed Parent Path - The Include file '|' cannot contain '..' to indicate the parent directory. |
| 132 | Compilation Error - The Active Server Page '|' could not be processed. |
| 133 | Invalid ClassID attribute - The object tag has an invalid ClassID of '|'. |
| 134 | Invalid ProgID attribute - The object has an invalid ProgID of '|'. |
| 135 | Cyclic Include - The file '|' is included by itself (perhaps indirectly). Please check include files for other Include statements. |
| 136 | Invalid object instance name - The object instance '|' is attempting to use a reserved name. This name is used by Active Server Pages intrinsic objects. |
| 137 | Invalid Global Script - Script blocks must be one of the allowed Global.asa procedures. Script directives within <% ... %> are not allowed within the global.asa file. The allowed procedure names are Application_OnStart, Application_OnEnd, Session_OnStart, or Session_OnEnd. |
| 138 | Nested Script Block - A script block cannot be placed inside another script block. |
| 139 | Nested Object - An object tag cannot be placed inside another object tag. |
| 140 | Page Command Out Of Order - The @ command must be the first command within the Active Server Page. |
| 141 | Page Command Repeated - The @ command can only be used once within the Active Server Page. |
| 142 | Thread token error - A thread token failed to open. |
| 143 | Invalid Application Name - A valid application name was not found. |
| 144 | Initialization Error - The page level objects list failed during initialization. |
| 145 | New Application Failed - The new Application could not be added. |
| 146 | New Session Failed - The new Session could not be added. |
| 147 | Server Error. |
| 148 | Server Too Busy. |
| 149 | Application Restarting - The request can not be processed while the application is being restarted. |
| 150 | Application Directory Error - The Application directory could not be opened. |
| 151 | Change Notification Error - The change notification event could not be created. |
| 152 | Security Error - An error occurred while processing a user's security credentials. |
| 153 | Thread Error - A new thread request failed. |
| 154 | Write HTTP Header Error - The HTTP headers could not be written to the client browser. |
| 155 | Write Page Content Error - The page content could not be written to the client browser. |
| 156 | Header Error - The HTTP headers are already written to the client browser. Any HTTP header modifications must be made before writing page content. |
| 157 | Buffering On - Buffering cannot be turned off once it is already turned on. |
| 158 | Missing URL - A URL is required. |
| 159 | Buffering Off - Buffering must be on. |
| 160 | Logging Failure - Failure to write entry to log. |
| 161 | Data Type Error - The conversion of a Variant to a String variable failed. |
| 162 | Cannot Modify Cookie - The cookie 'ASPSessionID' cannot be modified. It is a reserved cookie name. |
| 163 | Invalid Comma Use - Commas cannot be used within a log entry. Please select another delimiter. |
| 164 | Invalid TimeOut Value - An invalid TimeOut value was specified. |
| 165 | SessionID Error - A SessionID string cannot be created. |
| 166 | Uninitialized Object - An attempt was made to access an uninitialized object. |
| 167 | Session Initialization Error - An error occurred while initializing the Session object. |
| 168 | Disallowed object use - An intrinsic object cannot be stored within the Session object. |
| 169 | Missing object information - An object with missing information cannot be stored in the Session object. The threading model information for an object is required. |
| 170 | Delete Session Error - The Session did not delete properly. |
| 171 | Missing Path - The Path parameter must be specified for the MapPath method. |
| 172 | Invalid Path - The Path parameter for the MapPath method must be a virtual path. A physical path was used. |
| 173 | Invalid Path Character - An invalid character was specified in the Path parameter for the MapPath method. |
| 174 | Invalid Path Character(s) - An invalid '/' or '\\' was found in the Path parameter for the MapPath method. |
| 175 | Disallowed Path Characters - The '..' characters are not allowed in the Path parameter for the MapPath method. |
| 176 | Path Not Found - The Path parameter for the MapPath method did not correspond to a known path. |
| 177 | Server.CreateObject Failed. |
| 178 | Server.CreateObject Access Error - The call to Server.CreateObject failed while checking permissions. Access is denied to this object. |
| 179 | Application Initialization Error - An error occurred while initializing the Application object. |
| 180 | Disallowed object use - An intrinsic object cannot be stored within the Application object. |
| 181 | Invalid threading model - An object using the apartment threading model cannot be stored within the Application object. |
| 182 | Missing object information - An object with missing information cannot be stored in the Application object. The threading model information for the object is required. |
| 183 | Empty Cookie Key - A cookie with an empty key cannot be stored. |
| 184 | Missing Cookie Name - A name must be specified for a cookie. |
| 185 | Missing Default Property - A default property was not found for the object. |
| 186 | Error parsing certificate. |
| 187 | Object addition conflict - Could not add object to application. Application was locked down by another request for adding an object. |
| 188 | Disallowed object use - Cannot add objects created using object tags to the session intrinsic. |
| 189 | Disallowed object use - Cannot add objects created using object tags to the application intrinsic. |
| 190 | Unexpected error - A trappable error occurred while releasing an external object. |
| 191 | Unexpected error - A trappable error occurred in the OnStartPage method of an external object. |
| 192 | Unexpected error - A trappable error occurred in the OnEndPage method of an external object. |
| 193 | OnStartPage Failed - An error occurred in the OnStartPage method of an external object. |
| 194 | OnEndPage Failed - An error occurred in the OnEndPage method of an external object. |
| 195 | Invalid Server Method Call - This method of the Server object cannot be called during Session_OnEnd and Application_OnEnd. |
| 197 | Disallowed object use - Cannot add object with apartment model behavior to the application intrinsic object. |
| 198 | Server shutting down. Cannot process request. |
| 199 | Disallowed object use - Cannot add JScript objects to the session. |
| 200 | Out of Range 'Expires' attribute - The date and time given for 'Expires' precedes Jan 1, 1980 or exceeds Jan 19, 2038, 3:14:07 GMT. |
| 201 | Unknown scripting language in registry - The scripting language '|' specified in the registry is not found on the server. |
| 202 | Missing Code Page - The code page attribute is missing. |
| 203 | Invalid Code Page - The specified code page attribute is invalid. |
| 205 | Change Notification - Failed to create event for change notification. |
| 206 | Cannot call BinaryRead - Cannot call BinaryRead after using Request.Form collection. |
| 207 | Cannot use Request.Form - Cannot use Request.Form collection after calling BinaryRead. |
| 208 | Cannot use generic Request collection - Cannot use the generic Request collection after calling BinaryRead. |
| 209 | Illegal value for TRANSACTION property - The TRANSACTION property can only be REQUIRED, REQUIRES_NEW, SUPPORTED or NOT_SUPPORTED. |
| 210 | Method not implemented - This method has not yet been implemented. |
| 211 | Object out of scope - A built-in ASP object has been referenced, which is no longer valid. |
| 212 | Cannot Clear Buffer - Response.Clear is not allowed after a Response.Flush while Client Debugging is Enabled. |
| 214 | Invalid Path parameter - The Path parameter exceeds the maximum length allowed. |
| 215 | Illegal value for SESSION property - The SESSION property can only be TRUE or FALSE. |
| 216 | MSDTC Service not running - Transactional web pages cannot be run if the MSDTC service is not running. |
| 217 | Invalid Scope in object tag - Object scope must be Page, Session or Application. |
| 218 | Missing LCID - The LCID attribute is missing. |
| 219 | Invalid LCID - The specified LCID is not available. |
| 220 | Requests for GLOBAL.ASA Not Allowed - Requests with the URL pointing to GLOBAL.ASA are not allowed. |
| 221 | Invalid @ Command directive - The specified '|' option is unknown or invalid. |
| 222 | Invalid TypeLib Specification - METADATA tag contains an invalid Type Library specification. |
| 223 | TypeLib Not Found - METADATA tag contains a Type Library specification that does not match any Registry entry. |
| 224 | Cannot load TypeLib - Cannot load Type Library specified in the METADATA tag. |
| 225 | Cannot wrap TypeLibs - Cannot create a Type Library Wrapper object from the Type Libraries specified in METADATA tags. |
| 226 | Cannot modify StaticObjects - StaticObjects collection cannot be modified at run time. |
| 227 | Server.Execute Failed - The call to Server.Execute failed. |
| 228 | Server.Execute Error - The call to Server.Execute failed while loading the page. |
| 229 | Server.Transfer Failed - The call to Server.Transfer failed. |
| 230 | Server.Transfer Error - The call to Server.Transfer failed while loading the page. |
| 231 | Server.Execute Error - Invalid URL form or fully-qualified absolute URL was used. Use relative URLs. |
| 232 | Invalid Cookie Specification~METADATA tag contains an invalid cookie specification. |
| 233 | Cannot load cookie script source - Cannot load cookie script source file specified in the METADATA tag. |
| 234 | Invalid include directive~Server side include directives may not be present in script blocks. Please use the SRC= attribute of the <SCRIPT> tag. |
| 235 | Server.Transfer Error - Invalid URL form or fully-qualified absolute URL was used. Use relative URLs. |
| 236 | Invalid Cookie Specification - METADATA tag contains an invalid or missing SRC parameter. |
| 237 | Invalid Cookie Specification - METADATA tag contains an invalid or missing NAME parameter. |
| 238 | Missing attribute value - No value was specified for the '|' attribute. |
| 239 | Cannot process file - UNICODE ASP files are not supported. |
| 240 | Script Engine Exception~A ScriptEngine threw expection '%X' in '%s' from '%s'. |
| 241 | CreateObject Exception - The CreateObject of '%s' caused exception %X. |
| 242 | Query OnStartPage Interface Exception - Querying Object '%s''s OnStartPage or OnEndPage methods caused exception %X. |
Note When messages appear in the event log or Web browser, the symbols such as %1, %2, |, and so on, that appear in the documentation are replaced with details about the error at the time that the error actually occurred.