You can configure MIME types using a web.config file if you are running IIS 7.0. For more information, see Modifying or Adding Custom MIME Types to Windows Hosting Accounts. If your account is running IIS 6.0, contact customer service to have additional MIME types added. Note that only application/octet-stream MIME types can be added in this manner.
| File Extension | Content type (MIME) |
| .323 | text/h323 |
| .3g2 | video/3gpp2 |
| .3gp2 | video/3gpp2 |
| .3gp | video/3gpp |
| .3gpp | video/3gpp |
| .aaf | application/octet-stream |
| .aac | audio/aac |
| .aca | application/octet-stream |
| .accdb | application/msaccess |
| .accde | application/msaccess |
| .accdt | application/msaccess |
| .acx | application/internet-property-stream |
| .adt | audio/vnd.dlna.adts |
| .adts | audio/vnd.dlna.adts |
| .afm | application/octet-stream |
| .ai | application/postscript |
| .aif | audio/x-aiff |
| .aifc | audio/aiff |
| .aiff | audio/aiff |
| .application | application/x-ms-application |
| .art | image/x-jg |
| .asd | application/octet-stream |
| .asf | video/x-ms-asf |
| .asi | application/octet-stream |
| .asm | text/plain |
| .asr | video/x-ms-asf |
| .asx | video/x-ms-asf |
| .atom | application/atom+xml |
| .au | audio/basic |
| .avi | video/avi |
| .axs | application/olescript |
| .bas | text/plain |
| .bcpio | application/x-bcpio |
| .bin | application/octet-stream |
| .bmp | image/bmp |
| .c | text/plain |
| .cab | application/vnd.ms-cab-compressed |
| .calx | application/vnd.ms-office.calx |
| .cat | application/vnd.ms-pki.seccat |
| .cdf | application/x-cdf |
| .chm | application/octet-stream |
| .class | application/x-java-applet |
| .clp | application/x-msclip |
| .cmx | image/x-cmx |
| .cnf | text/plain |
| .cod | image/cis-cod |
| .cpio | application/x-cpio |
| .cpp | text/plain |
| .crd | application/x-mscardfile |
| .crl | application/pkix-crl |
| .crt | application/x-x509-ca-cert |
| .csh | application/x-csh |
| .css | text/css |
| .csv | application/octet-stream |
| .cur | application/octet-stream |
| .dcr | application/x-director |
| .deploy | application/octet-stream |
| .der | application/x-x509-ca-cert |
| .dib | image/bmp |
| .dir | application/x-director |
| .disco | text/xml |
| .dll | application/x-msdownload |
| .dll.config | text/xml |
| .dlm | text/dlm |
| .doc | application/msword |
| .docm | application/vnd.ms-word.document.macroEnabled.12 |
| .docx | application/vnd.openxmlformats-officedocument.wordprocessingml.document |
| .dot | application/msword |
| .dotm | application/vnd.ms-word.template.macroEnabled.12 |
| .dotx | application/vnd.openxmlformats-officedocument.wordprocessingml.template |
| .dsp | application/octet-stream |
| .dtd | text/xml |
| .dvi | application/x-dvi |
| .dvr-ms | video/x-ms-dvr |
| .dwf | drawing/x-dwf |
| .dwp | application/octet-stream |
| .dxr | application/x-director |
| .eml | message/rfc822 |
| .emz | application/octet-stream |
| .eot | application/vnd.ms-fontobject |
| .eps | application/postscript |
| .etx | text/x-setext |
| .evy | application/envoy |
| .exe | application/octet-stream |
| .exe.config | text/xml |
| .fdf | application/vnd.fdf |
| .fif | application/fractals |
| .fla | application/octet-stream |
| .flr | x-world/x-vrml |
| .gif | image/gif |
| .gtar | application/x-gtar |
| .gz | application/x-gzip |
| .h | text/plain |
| .hdf | application/x-hdf |
| .hdml | text/x-hdml |
| .hhc | application/x-oleobject |
| .hhk | application/octet-stream |
| .hhp | application/octet-stream |
| .hlp | application/winhlp |
| .hqx | application/mac-binhex40 |
| .hta | application/hta |
| .htc | text/x-component |
| .htm | text/html |
| .html | text/html |
| .htt | text/webviewhtml |
| .hxt | text/html |
| .ico | image/x-icon |
| .ics | text/calendar |
| .ief | image/ief |
| .iii | application/x-iphone |
| .inf | application/octet-stream |
| .ins | application/x-internet-signup |
| .isp | application/x-internet-signup |
| .IVF | video/x-ivf |
| .jar | application/java-archive |
| .java | application/octet-stream |
| .jck | application/liquidmotion |
| .jcz | application/liquidmotion |
| .jfif | image/pjpeg |
| .jpb | application/octet-stream |
| .jpe | image/jpeg |
| .jpeg | image/jpeg |
| .jpg | image/jpeg |
| .js | application/javascript |
| .jsx | text/jscript |
| .latex | application/x-latex |
| .lit | application/x-ms-reader |
| .lpk | application/octet-stream |
| .lsf | video/x-la-asf |
| .lsx | video/x-la-asf |
| .lzh | application/octet-stream |
| .m13 | application/x-msmediaview |
| .m14 | application/x-msmediaview |
| .m1v | video/mpeg |
| .m2ts | video/vnd.dlna.mpeg-tts |
| .m3u | audio/x-mpegurl |
| .m4a | audio/mp4 |
| .m4v | video/mp4 |
| .man | application/x-troff-man |
| .manifest | application/x-ms-manifest |
| .map | text/plain |
| .mdb | application/x-msaccess |
| .mdp | application/octet-stream |
| .me | application/x-troff-me |
| .mht | message/rfc822 |
| .mhtml | message/rfc822 |
| .mid | audio/mid |
| .midi | audio/mid |
| .mix | application/octet-stream |
| .mmf | application/x-smaf |
| .mno | text/xml |
| .mny | application/x-msmoney |
| .mov | video/quicktime |
| .movie | video/x-sgi-movie |
| .mp2 | video/mpeg |
| .mp3 | audio/mpeg |
| .mp4 | video/mp4 |
| .mp4v | video/mp4 |
| .mpa | video/mpeg |
| .mpe | video/mpeg |
| .mpeg | video/mpeg |
| .mpg | video/mpeg |
| .mpp | application/vnd.ms-project |
| .mpv2 | video/mpeg |
| .ms | application/x-troff-ms |
| .msi | application/octet-stream |
| .mso | application/octet-stream |
| .mvb | application/x-msmediaview |
| .mvc | application/x-miva-compiled |
| .nc | application/x-netcdf |
| .nsc | video/x-ms-asf |
| .nws | message/rfc822 |
| .ocx | application/octet-stream |
| .oda | application/oda |
| .odc | text/x-ms-odc |
| .ods | application/oleobject |
| .oga | audio/ogg |