| Character set | Code | Symbol | Name |
|---|---|---|---|
| Code page 437 | 168 | ¿ | Inverted question mark |
| ISO-8859-1 | 168 | ¨ | Spacing diaeresis - umlaut |
| ISO-8859-2 | 168 | ¨ | Spacing diaeresis - umlaut |
| ISO-8859-3 | 168 | ¨ | Spacing diaeresis - umlaut |
| ISO-8859-4 | 168 | ¨ | Spacing diaeresis - umlaut |
| ISO-8859-5 | 168 | Ј | Cyrillic capital letter Je |
| ISO-8859-6 | 168 | Unused | |
| ISO-8859-7 | 168 | ¨ | Spacing diaeresis - umlaut |
| ISO-8859-8 | 168 | ¨ | Spacing diaeresis - umlaut |
| ISO-8859-9 | 168 | ¨ | Spacing diaeresis - umlaut |
| ISO-8859-10 | 168 | Ļ | Latin capital letter L with cedilla |
| ISO-8859-11 | 168 | จ | Thai character Cho Chan |
| Windows-1250 | 168 | ¨ | Spacing diaeresis - umlaut |
| Windows-1251 | 168 | Ё | Cyrillic capital letter Io |
| Windows-1252 | 168 | ¨ | Spacing diaeresis - umlaut |
| Windows-1253 | 168 | ¨ | Spacing diaeresis - umlaut |
| Windows-1254 | 168 | ¨ | Spacing diaeresis - umlaut |
| Windows-1255 | 168 | ¨ | Spacing diaeresis - umlaut |
| Windows-1256 | 168 | ¨ | Spacing diaeresis - umlaut |
| Windows-1257 | 168 | Ø | Latin capital letter O with slash |
| Windows-1258 | 168 | ¨ | Spacing diaeresis - umlaut |