Internet Information Services (IIS) 7.0 Resource Kit

Appendix A. IIS 7.0 HTTP Status Codes

Table A-1 offers a list of custom HTTP codes that Internet Information Services (IIS) 7.0 uses when displaying an error. Custom error files are stored in %SystemDrive%\inetpub\custerr\Locale (that is, %SystemDrive%\inetpub\custerr\en-us). Not all status codes have custom error pages on disk. When the custom error module detects an error, one of six actions is chosen:

1. Response is left alone

2. One-line error message is printed

3. Static file served off disk (c:\inetpub\custerr\en-us\404.htm)

4. URL is executed

5. Redirect

6. Detailed error is generated (default most common localhost behavior)

Following is a list of articles that provide more information on HTTP status codes and common causes to errors with links to troubleshooting ...