Microsoft Internet Explorer usa il set di caratteri specificato in un documento per determinare come tradurre i bytes nel documento in caratteri sullo schermo o su carta.

In maniera predefinita Internet Explorer usa i caratteri specificati nell'attributo content-type.
Se questo parametro non viene fornito, utilizza il set di caratteri specificato nel tag meta del documento.
Se anche il tag meta non viene fornito, utilizza le preferenze utente.

E' possibile utilizzare il tag meta per impostare esplicitamente il set di caratteri di un documento.
In questo caso impostare l'attributo HTTP-EQUIV al valore Content-Type e specificare l'identificatore del set di caratteri come valore dell'attributo CONTENT. Segue un esempio:

<META HTTP-EQUIV="Content-Type" CONTENT="text/html; CHARSET=windows-1251">  

In genere il tag meta viene indicato come primo elemento del tag head, così che tutti i browsers possano tradurre l'elemento meta prima dei contenuti della pagina.

elenco charset
elenco content-type


Seguono i set di caratteri più diffusi:

Charset Etichetta Etichette alternative  Ver IE OS Min
Arabic (ASMO 708) ASMO-708   IE5 Win95
Arabic (DOS) DOS-720   IE5 Win95
Arabic (ISO) iso-8859-6 arabic, csISOLatinArabic, ECMA-114, ISO_8859-6, ISO_8859-6:1987, iso-ir-127 IE5, IE4 Win95
Arabic (Mac) x-mac-arabic   IE5 Win2000
Arabic (Windows) windows-1256 cp1256 IE5 Win95
Baltic (DOS) ibm775 CP500 IE5 Win2000
Baltic (ISO) iso-8859-4 csISOLatin4, ISO_8859-4, ISO_8859-4:1988, iso-ir-110, l4, latin4 IE5 Win95
Baltic (Windows) windows-1257   IE5 Win95
Central European (DOS) ibm852 cp852 IE5, IE4 Win95
Central European (ISO) iso-8859-2 csISOLatin2, iso_8859-2, iso_8859-2:1987, iso8859-2, iso-ir-101, l2, latin2 IE5, IE4 Win95
Central European (Mac) x-mac-ce   IE5 Win2000
Central European (Windows) windows-1250 x-cp1250 IE5 Win95
Chinese Simplified (EUC) EUC-CN x-euc-cn IE5 Win2000
Chinese Simplified (GB2312) gb2312 chinese, CN-GB, csGB2312, csGB231280, csISO58GB231280, GB_2312-80, GB231280, GB2312-80, GBK, iso-ir-58 IE5, IE4 Win95
Chinese Simplified (HZ) hz-gb-2312   IE5, IE4 Win95
Chinese Simplified (Mac) x-mac-chinesesimp   IE5 Win2000
Chinese Traditional (Big5) big5 cn-big5, csbig5, x-x-big5 IE5, IE4 Win95
Chinese Traditional (CNS) x-Chinese-CNS   IE5 Win2000
Chinese Traditional (Eten) x-Chinese-Eten   IE5 Win2000
Chinese Traditional (Mac) x-mac-chinesetrad   IE5 Win2000
Cyrillic (DOS) cp866 ibm866 IE5, IE4 Win95
Cyrillic (ISO) iso-8859-5 csISOLatin5, csISOLatinCyrillic, cyrillic, ISO_8859-5, ISO_8859-5:1988, iso-ir-144, l5 IE5, IE4 Win95
Cyrillic (KOI8-R) koi8-r csKOI8R, koi, koi8, koi8r IE5, IE4 Win95
Cyrillic (KOI8-U) koi8-u koi8-ru IE5 Win95
Cyrillic (Mac) x-mac-cyrillic   IE5 Win2000
Cyrillic (Windows) windows-1251 x-cp1251 IE5 Win95
Europa x-Europa   IE5 n.a.
German (IA5) x-IA5-German   IE5 Win2000
Greek (DOS) ibm737   IE5 Win2000
Greek (ISO) iso-8859-7 csISOLatinGreek, ECMA-118, ELOT_928, greek, greek8, ISO_8859-7, ISO_8859-7:1987, iso-ir-126 IE5, IE4 Win95
Greek (Mac) x-mac-greek   IE5 Win2000
Greek (Windows) windows-1253   IE5 Win95
Greek, Modern (DOS) ibm869   IE5 Win2000
Hebrew (DOS) DOS-862   IE5 Win95
Hebrew (ISO-Logical) iso-8859-8-i logical IE5, IE4 Win95
Hebrew (ISO-Visual) iso-8859-8 csISOLatinHebrew, hebrew, ISO_8859-8, ISO_8859-8:1988, ISO-8859-8, iso-ir-138, visual IE5, IE4 Win95
Hebrew (Mac) x-mac-hebrew   IE5 Win2000
Hebrew (Windows) windows-1255 ISO_8859-8-I, ISO-8859-8, visual IE5 Win95
IBM EBCDIC (Arabic) x-EBCDIC-Arabic   IE5 Win2000
IBM EBCDIC (Cyrillic Russian) x-EBCDIC-CyrillicRussian   IE5 Win2000
IBM EBCDIC (Cyrillic Serbian-Bulgarian) x-EBCDIC-CyrillicSerbianBulgarian   IE5 Win2000
IBM EBCDIC (Denmark-Norway) x-EBCDIC-DenmarkNorway   IE5 Win2000
IBM EBCDIC (Denmark-Norway-Euro) x-ebcdic-denmarknorway-euro   IE5 Win2000
IBM EBCDIC (Finland-Sweden) x-EBCDIC-FinlandSweden   IE5 Win2000
IBM EBCDIC (Finland-Sweden-Euro) x-ebcdic-finlandsweden-euro   IE5 Win2000
IBM EBCDIC (Finland-Sweden-Euro) x-ebcdic-finlandsweden-euro X-EBCDIC-France IE5 Win2000
IBM EBCDIC (France-Euro) x-ebcdic-france-euro   IE5 Win2000
IBM EBCDIC (Germany) x-EBCDIC-Germany   IE5 Win2000
IBM EBCDIC (Germany-Euro) x-ebcdic-germany-euro   IE5 Win2000
IBM EBCDIC (Greek Modern) x-EBCDIC-GreekModern   IE5 Win2000
IBM EBCDIC (Greek) x-EBCDIC-Greek   IE5 Win2000
IBM EBCDIC (Hebrew) x-EBCDIC-Hebrew   IE5 Win2000
IBM EBCDIC (Icelandic) x-EBCDIC-Icelandic   IE5 Win2000
IBM EBCDIC (Icelandic-Euro) x-ebcdic-icelandic-euro   IE5 Win2000
IBM EBCDIC (International-Euro) x-ebcdic-international-euro   IE5 Win2000
IBM EBCDIC (Italy) x-EBCDIC-Italy   IE5 Win2000
IBM EBCDIC (Italy-Euro) x-ebcdic-italy-euro   IE5 Win2000
IBM EBCDIC (Japanese and Japanese Katakana) x-EBCDIC-JapaneseAndKana   IE5 Win2000
IBM EBCDIC (Japanese and Japanese-Latin) x-EBCDIC-JapaneseAndJapaneseLatin   IE5 Win2000
IBM EBCDIC (Japanese and US-Canada) x-EBCDIC-JapaneseAndUSCanada   IE5 Win2000
IBM EBCDIC (Japanese katakana) x-EBCDIC-JapaneseKatakana   IE5 Win2000
IBM EBCDIC (Korean and Korean Extended) x-EBCDIC-KoreanAndKoreanExtended   IE5 Win2000
IBM EBCDIC (Korean Extended) x-EBCDIC-KoreanExtended   IE5 Win2000
IBM EBCDIC (Multilingual Latin-2) CP870   IE5 Win2000
IBM EBCDIC (Simplified Chinese) x-EBCDIC-SimplifiedChinese   IE5 Win2000
IBM EBCDIC (Spain) X-EBCDIC-Spain   IE5 Win2000
IBM EBCDIC (Spain-Euro) x-ebcdic-spain-euro   IE5 Win2000
IBM EBCDIC (Thai) x-EBCDIC-Thai   IE5 Win2000
IBM EBCDIC (Traditional Chinese) x-EBCDIC-TraditionalChinese   IE5 Win2000
IBM EBCDIC (Turkish Latin-5) CP1026   IE5 Win2000
IBM EBCDIC (Turkish) x-EBCDIC-Turkish   IE5 Win2000
IBM EBCDIC (UK) x-EBCDIC-UK   IE5 Win2000
IBM EBCDIC (UK-Euro) x-ebcdic-uk-euro   IE5 Win2000
IBM EBCDIC (US-Canada) ebcdic-cp-us   IE5 Win2000
IBM EBCDIC (US-Canada-Euro) x-ebcdic-cp-us-euro   IE5 Win2000
Icelandic (DOS) ibm861   IE5 Win2000
Icelandic (Mac) x-mac-icelandic   IE5 Win2000
ISCII Assamese x-iscii-as   IE5 Win2000
ISCII Bengali x-iscii-be   IE5 Win2000
ISCII Devanagari x-iscii-de   IE5 Win2000
ISCII Gujarathi x-iscii-gu   IE5 Win2000
ISCII Kannada x-iscii-ka   IE5 Win2000
ISCII Malayalam x-iscii-ma   IE5 Win2000
ISCII Oriya x-iscii-or   IE5 Win2000
ISCII Panjabi x-iscii-pa   IE5 Win2000
ISCII Tamil x-iscii-ta   IE5 Win2000
ISCII Telugu x-iscii-te   IE5 Win2000
Japanese (EUC) euc-jp csEUCPkdFmtJapanese, Extended_UNIX_Code_Packed_Format_for_Japanese, x-euc, x-euc-jp IE5, IE4 Win95
Japanese (JIS) iso-2022-jp   IE5, IE4 Win95
Japanese (JIS-Allow 1 byte Kana - SO/SI) iso-2022-jp _iso-2022-jp$SIO IE5 Win95
Japanese (JIS-Allow 1 byte Kana) csISO2022JP _iso-2022-jp IE5 Win95
Japanese (Mac) x-mac-japanese   IE5 Win2000
Japanese (Shift-JIS) shift_jis csShiftJIS, csWindows31J, ms_Kanji, shift-jis, x-ms-cp932, x-sjis IE5, IE4 Win95
Korean ks_c_5601-1987 csKSC56011987, euc-kr, iso-ir-149, korean, ks_c_5601, ks_c_5601_1987, ks_c_5601-1989, KSC_5601, KSC5601 IE5 Win95
Korean (EUC) euc-kr csEUCKR IE5 Win95
Korean (ISO) iso-2022-kr csISO2022KR IE5 Win95
Korean (Johab) Johab   IE5 Win2000
Korean (Mac) x-mac-korean   IE5 Win2000
Latin 3 (ISO) iso-8859-3 csISO, Latin3, ISO_8859-3, ISO_8859-3:1988, iso-ir-109, l3, latin3 IE5, IE4 Win95
Latin 9 (ISO) iso-8859-15 csISO, Latin9, ISO_8859-15, l9, latin9 IE5 Win95
Norwegian (IA5) x-IA5-Norwegian   IE5 Win2000
OEM United States IBM437 437, cp437, csPC8, CodePage437 IE5 Win2000
Swedish (IA5) x-IA5-Swedish   IE5 Win2000
Thai (Windows) windows-874 DOS-874, iso-8859-11, TIS-620 IE5, IE4 Win95
Turkish (DOS) ibm857   IE5 Win2000
Turkish (ISO) iso-8859-9 csISO, Latin5, ISO_8859-9, ISO_8859-9:1989, iso-ir-148, l5, latin5 IE5 Win95
Turkish (Mac) x-mac-turkish   IE5 Win2000
Turkish (Windows) windows-1254 ISO_8859-9, ISO_8859-9:1989, iso-8859-9, iso-ir-148, latin5 IE5 Win95
Unicode unicode utf-16 IE5, IE4 Win95
Unicode (Big-Endian) unicodeFFFE   IE5, IE4 Win95
Unicode (UTF-7) utf-7 csUnicode11UTF7, unicode-1-1-utf-7, x-unicode-2-0-utf-7 IE5, IE4 Win95
Unicode (UTF-8) utf-8 unicode-1-1-utf-8, unicode-2-0-utf-8, x-unicode-2-0-utf-8 IE5, IE4 Win95
US-ASCII us-ascii ANSI_X3.4-1968, ANSI_X3.4-1986, ascii, cp367, csASCII, IBM367, ISO_646.irv:1991, ISO646-US, iso-ir-6us IE5 Win95
Vietnamese (Windows) windows-1258   IE5, IE4 Win95
Western European (DOS) ibm850   IE5 Win2000
Western European (IA5) x-IA5   IE5 Win2000
Western European (ISO) iso-8859-1 cp819, csISO, Latin1, ibm819, iso_8859-1, iso_8859-1:1987, iso8859-1, iso-ir-100, l1, latin1 IE5 Win95
Western European (Mac) macintosh   IE5 Win2000
Western European (Windows) Windows-1252 ANSI_X3.4-1968, ANSI_X3.4-1986, ascii, cp367, cp819, csASCII, IBM367, ibm819, ISO_646.irv:1991, iso_8859-1, iso_8859-1:1987, ISO646-US, iso8859-1, iso-8859-1, iso-ir-100, iso-ir-6, latin1, us, us-ascii, x-ansi IE5 Win95

Seguono i content-type più diffusi:

Descrizione
Estensioni tipiche

MIME type/subtype
Text and Text-Related Types
HTML text data (RFC 1866) html htm text/html
Plain text: documents; program listings txt c c++ pl cc h text/plain
Richtext (obsolete - replaced by text/enriched) text/richtext
Structure enhanced text (etx?) text/x-setext
Enriched text markup (RFC 1896) text/enriched
Tab-separated values (tabular) (tsv?) text/tab-separated-values
SGML documents (RFC 1874) text/sgml
Speech synthesis data (MVP Solutions) talk text/x-speech
 
Document Stylesheet Types
Cascading Stylesheets css text/css
DSSSL-online stylesheets application/dsssl (proposed)
 
Image Types
GIF gif image/gif
X-Windows bitmap (b/w) xbm image/x-xbitmap
X-Windows pixelmap (8-bit color) xpm image/x-xpixmap
Portable Network Graphics png image/x-png
Image Exchange Format (RFC 1314) ief image/ief
JPEG jpeg jpg jpe image/jpeg
TIFF tiff tif image/tiff
RGB rgb image/rgb
image/x-rgb
Group III Fax (RFC 1494) g3f image/g3fax
X Windowdump format xwd image/x-xwindowdump
Macintosh PICT format pict image/x-pict
PPM (UNIX PPM package) ppm image/x-portable-pixmap
PGM (UNIX PPM package) pgm image/x-portable-graymap
PBM (UNIX PPM package) pbm image/x-portable-bitmap
PNM (UNIX PPM package) pnm image/x-portable-anymap
Microsoft Windows bitmap bmp image/x-ms-bmp
CMU raster ras image/x-cmu-raster
Kodak Photo-CD pcd image/x-photo-cd
Computer Graphics Metafile cgm image/cgm
North Am. Presentation Layer Protocol image/naplps
CALS Type 1 or 2 mil cal image/x-cals
Fractal Image Format (Iterated Systems) fif image/fif
QuickSilver active image (Micrografx) dsf image/x-mgx-dsf
CMX vector image (Corel) cmx image/x-cmx
Wavelet-compressed (Summus) wi image/wavelet
AutoCad Drawing (SoftSource) dwg image/vnd.dwg
image/x-dwg
AutoCad DXF file (SoftSource) dxf image/vnd.dxf
image/x-dxf
Simple Vector Format (SoftSource) svf image/vnd.svf
also vector/x-svf
Audio/Voice/Music Related Types
"basic"audio - 8-bit u-law PCM au snd audio/basic
Macintosh audio format (AIpple) aif aiff aifc audio/x-aiff
Microsoft audio wav audio/x-wav
MPEG audio mpa abs mpega audio/x-mpeg
MPEG-2 audio mp2a mpa2 audio/x-mpeg-2
compressed speech (Echo Speech Corp.) es audio/echospeech
Toolvox speech audio (Voxware) vox audio/voxware
RapidTransit compressed audio (Fast Man) lcc application/fastman
Realaudio (Progressive Networks) ra ram application/x-pn-realaudio
NIFF music notation data format application/vnd.music-niff
MIDI music data mmid x-music/x-midi
Koan music data (SSeyo) skp application/vnd.koan
application/x-koan
Speech synthesis data (MVP Solutions) talk text/x-speech
 
Video Types
MPEG video mpeg mpg mpe video/mpeg
MPEG-2 video mpv2 mp2v video/mpeg-2
Macintosh Quicktime qt mov video/quicktime
Microsoft video avi video/x-msvideo
SGI Movie format movie video/x-sgi-movie
VDOlive streaming video (VDOnet) vdo video/vdo
Vivo streaming video (Vivo software) viv video/vnd.vivo
video/vivo
Special HTTP/Web Application Types
Proxy autoconfiguration (Netscape browsers) pac application/x-ns-proxy-autoconfig
See Chapter 6 application/x-www-form-urlencoded
See Chapter 9 application/x-www-local-exec
See Chapter 9 (Netscape extension) multipart/x-mixed-replace
See Chapter 9 and Appendix B multipart/form-data
Netscape Cooltalk chat data (Netscape) ice x-conference/x-cooltalk
Interactive chat (Ichat) application/x-chat
 
Text-Related
PostScript ai eps ps application/postscript
Microsoft Rich Text Format rtf application/rtf
Adobe Acrobat PDF pdf application/pdf
application/x-pdf
Maker Interchange Format (FrameMaker) mif application/vnd.mif
application/x-mif
Troff document t tr roff application/x-troff
Troff document with MAN macros man application/x-troff-man
Troff document with ME macros me application/x-troff-me
Troff document with MS macros ms application/x-troff-ms
LaTeX document latex application/x-latex
Tex/LateX document tex application/x-tex
GNU TexInfo document texinfo texi application/x-texinfo
TeX dvi format dvi application/x-dvi
MacWrite document ?? application/macwriteii
MS word document ?? application/msword
WordPerfect 5.1 document ?? application/wordperfect5.1
SGML application (RFC 1874) application/sgml
Office Document Architecture oda application/oda
Envoy Document evy application/envoy
Wang Info. Tranfer Format (Wang) application/wita
DEC Document Transfer Format (DEC) application/dec-dx
IBM Document Content Architecture (IBM) application/dca-rft
CommonGround Digital Paper (No Hands Software) application/commonground
FrameMaker Documents (Frame) doc fm frm frame application/vnd.framemaker
application/x-framemaker
Remote printing at arbitrary printers (RFC 1486) application/remote-printing
 
Archive/Compressed Archives
Gnu tar format gtar application/x-gtar
4.3BSD tar format tar application/x-tar
POSIX tar format ustar application/x-ustar
Old CPIO format bcpio application/x-bcpio
POSIX CPIO format cpio application/x-cpio
UNIX sh shell archive shar application/x-shar
DOS/PC - Pkzipped archive zip application/zip
Macintosh Binhexed archive hqx application/mac-binhex40
Macintosh Stuffit Archive sit sea application/x-stuffit
Fractal Image Format fif application/fractals
Binary, UUencoded bin uu application/octet-stream
PC executable exe application/octet-stream
WAIS "sources" src wsrc application/x-wais-source
NCSA HDF data format hdf application/hdf
 
Downloadable Program/Scripts
Javascript program js ls mocha text/javascript
application/x-javascript
VBScript program text/vbscript
UNIX bourne shell program sh application/x-sh
UNIX c-shell program csh application/x-csh
Perl program pl application/x-perl
Tcl (Tool Control Language) program tcl application/x-tcl
Atomicmail program scripts (obsolete) application/atomicmail
Slate documents - executable enclosures (BBN) application/slate
Undefined binary data (often executable progs) application/octet-stream
RISC OS Executable programs (ANT Limited) application/riscos
 
Animation/Multimedia
Andrew Toolkit inset application/andrew-inset
FutureSplash vector animation (FutureWave) spl application/futuresplash
mBED multimedia data (mBED) mbd application/mbedlet
Macromedia Shockwave (Macromedia) application/x-director
Sizzler real-time video/animation application/x-sprite
PowerMedia multimedia (RadMedia) rad application/x-rad-powermedia
 
Presentation
PowerPoint presentation (Microsoft) ppz application/mspowerpoint
PointPlus presentation data (Net Scene) css application/x-pointplus
ASAP WordPower (Software Publishing Corp.) asp application/x-asap
Astound Web Player multimedia data (GoldDisk) asn application/astound
 
Special Embedded Object
OLE script e.g. Visual Basic (Ncompass) axs application/x-olescript
OLE Object (Microsoft/NCompass) ods application/x-oleobject
OpenScape OLE/OCX objects (Business@Web) opp x-form/x-openscape
Visual Basic objects (Amara) wba application/x-webbasic
Specialized data entry forms (Alpha Software) frm application/x-alpha-form
client-server objects (Wayfarer Communications) wfx x-script/x-wfxclient
 
General Applications
Undefined binary data (often executable progs) application/octet-stream
CALS (U.S. D.O.D data format - RFC 1895) application/cals-1840
Pointcast news data (Pointcast) pcn application/x-pcn
Excel spreadsheet (Microsoft) application/vnd.ms-excel
application/x-msexcel
application/ms-excel
PowerPoint (Microsoft) ppt application/vnd.ms-powerpoint
application/ms-powerpoint
Microsoft Project (Microsoft) application/vnd.ms-project
Works data (Microsoft) application/vnd.ms-works
MAPI data (Microsoft) application/vnd.ms-tnef
Artgallery data (Microsoft) application/vnd.artgalry
SourceView document (Dataware Electronics) svd application/vnd.svd
Truedoc (Bitstream) application/vnd.truedoc
Net Install - software install (20/20 Software) ins application/x-net-install
Carbon Copy - remote control/access (Microcom) ccv application/ccv
Spreadsheets (Visual Components) vts workbook/formulaone
Cybercash digital money (Cybercash) application/cybercash
Format for sending generic Macintosh files application/applefile
Active message -- connect to active mail app. application/activemessage
X.400 mail message body part (RFC 1494) application/x400-bp
USENET news message id (RFC 1036) application/news-message-id
USENET news message (RFC 1036) application/news-transmission
 
Multipart Types (mostly email)
Messages with multiple parts multipart/mixed
Messages with multiple, alternative parts multipart/alternative
Message with multiple, related parts multipart/related
Multiple parts are digests multipart/digest
For reporting of email status (admin.) multipart/report
Order of parts does not matter multipart/parallel
Macintosh file data multipart/appledouble
Aggregate messages; descriptor as header multipart/header-set
Container for voice-mail multipart/voice-message
HTML FORM data (see Ch. 9 and App. B) multipart/form-data
Infinite multiparts - See Chapter 9 (Netscape) multipart/x-mixed-replace
 
Message Types (mostly email)
MIME message message/rfc822
Partial message message/partial
Message containing external references message/external-body
Message containing USENET news message/news
HTTP message message/http
 
2D/3D Data/Virtual Reality Types
VRML data file wrl vrml x-world/x-vrml

(changing to model/vrml)

WIRL - VRML data (VREAM) vrw x-world/x-vream
Play3D 3d scene data (Play3D) p3d application/x-p3d
Viscape Interactive 3d world data (Superscape) svr x-world/x-svr
WebActive 3d data (Plastic Thought) wvr x-world/x-wvr
QuickDraw3D scene data (Apple) 3dmf x-world/x-3dmf
 
Scientific/Math/CAD Types
Chemical types -- to communicate information about chemical models chemical/* (several subtypes)
Mathematica notebook ma application/mathematica
Computational meshes for numerical simulations msh x-model/x-mesh

(evolving to model/mesh)

Vis5D 5-dimensional data v5d application/vis5d
IGES models -- CAD/CAM (CGM) data igs application/iges

(evolving to model/iges?)

Autocad WHIP vector drawings dwf drawing/x-dwf
 
Silicon Graphics Specific Types
Showcase Presentations showcase slides sc sho show application/x-showcase
Insight Manual pages ins insight application/x-insight
Iris Annotator data ano application/x-annotator
Directory Viewer dir application/x-dirview
Software License lic application/x-enterlicense
Fax manager file faxmgr application/x-fax-manager
Fax job data file faxmgrjob application/x-fax-manager-job
IconBook data icnbk application/x-iconbook
? wb application/x-inpview
Installable software in 'inst' format inst application/x-install
Mail folder mail application/x-mailfolder
? pp ppages application/x-ppages
Data for printer (via lpr) sgi-lpr application/x-sgi-lpr
Software in 'tardist' format tardist application/x-tardist
Software in compressed 'tardist' format ztardist application/x-ztardist
WingZ spreadsheet wkz application/x-wingz
Open Inventor 3-D scenes iv graphics/x-inventor