List of currently supported MIME types

As part of upgrading our web server software to Apache version 1.3.14, default MIME types had to be changed in order for web server generated error messages to display as HTML (in the Netscape/Mozilla browsers) as they have in the past. This has had a side effect for files with extensions which are not defined in our server MIME types - typically binary files which are meant to be downloaded.

Presently, if a binary file is posted to a site, and the MIME type for that file has not been defined - not uncommon for files simply meant to be downloaded, some versions of the Netscape/Mozilla browsers may display the binary file as garbled text rather than prompt for the download of the file.

The quickest and easiest way to get the old behavior back (download of that binary file with the unregistered MIME type) is to make an addition to the .htaccess file in the root of the affected site, or the directory containing the file. This addition should not impair function of other directives contained in that .htaccess file, should one already exist. (FrontPage users: be very careful modifying your .htaccess files...click here for details.)

The following is an example:

AddType application/octet-stream <type> <extension>

A basic example with a sample extension:

AddType application/octet-stream its .its

If a MIME type would be useful to others, such as some new file type which is making the rounds, please do make a request to ITS Technical Support to have that MIME type configured on our systems. Use of the .htaccess file is preferable for other types of files to avoid any sort of conflict with different sorts of files which may share the same file name extension.

Please note: the information on this page applies to ITS web hosting plans. It may or may not apply to other environments. If you are looking for a feature described here, or better support from your hosting provider, please consider hosting your site with ITS!

1555 N Naperville/Wheaton Road, Suite 107
Naperville, IL 60563
phone 630.420.2550
fax 630.420.2771