This property specifies the custom error string to be sent to clients in response to HTTP 1.1 errors. Each string in the list specifies the HTTP error code and subcode, indicates whether the handler will be a URL or a file, and specifies which URL or file the client will be sent. Each string can be in one of two formats. To send a URL to the client, use HTTPErrorCode, HTTPErrorSubcode, URL, HanderlerURL. To send a file, use HTTPErrorCode, HTTPErrorSubcode, FILE, Filename.
The following table describes this property:
| Data type | List (String) |
| Default value | Empty list |
| Default inheritance | Inheritable |
Accessible by IIS Admin Objects:
| IIsWebService | IIsWebServer | IIsWebVirtualDir | IIsWebDirectory |
| IIsWebFile |