View source for VPSKeys

'''VPSKeys''' is a [[freeware]] [[Input method|input method editor]] developed and distributed by the [[Vietnamese Professionals Society]] (VPS). One of the first input method editors for Vietnamese, it allows users to add [[diacritic|accent marks]] to Vietnamese text on computers running [[Microsoft Windows]]. The first version of VPSKeys, supporting Windows 3.1, was released in 1993. The most recent version is 4.3, released in October 2007<!-- according to the timestamp of the file on the server -->.<ref name="VPSKeys">VPSKeys homepage.<!-- Left out until a malware-free version is reuploaded for sure: http://www.vps.org/rubrique.php3?id_rubrique=69 --></ref>

==Features==
VPSKeys supports the [[Telex (IME)|Telex]], VISCII, [[VNI]], and [[Vietnamese Quoted-Readable|VIQR]] input methods, as well as a number of [[character encoding]]s. One of its unique features is a "hook/tilde dictionary" ({{lang|vi|Tự Điển Hỏi Ngã}}), which provides [[spelling suggestion]]s for distinguishing words with {{lang|vi|hỏi}} or {{lang|vi|ngã}} tones. This feature is helpful for speakers of [[vietnamese language#Tones 2|dialects in which these two tones have merged]].

==VPS character encoding==
{{Infobox character encoding
|name = VPS encoding
|alias = <code>x-viet-vps</code><ref>{{cite web |url=https://groups.google.com/d/msg/mozilla.dev.apps.thunderbird/2P5kCJJS_WI/oWhT0STivL0J |last=Sivonen |first=Henri |title=Character encoding changes in m-c require c-c action |work=mozilla.dev.apps.thunderbird |date=2014-09-26}}</ref>
|by = 
|standard = 
|lang = [[Vietnamese language|Vietnamese]], [[English language|English]]
|basedon = [[ASCII]]
|classification = 8-bit [[SBCS]]
}}
The "VPS" [[character encoding]] for [[Vietnamese language and computers|writing Vietnamese]] replaces several control characters, including several [[C0 control characters]], with letters while including the [[ASCII]] graphical characters unmodified, a similar approach to [[VSCII|VSCII-1]] (TCVN1) and [[VISCII]].

{|{{chset-table-header1|VPS Encoding<ref name="vufaq">{{cite web |url=http://vietunicode.sourceforge.net/charset/ |title=Unicode & Vietnamese Legacy Character Encodings |work=Vietnamese Unicode FAQs}}</ref><ref name="vufaqvni">{{cite web |url=http://vietunicode.sourceforge.net/charset/vps.html |title=VPS Character Set (Vietnamese Professional Society) |work=Vietnamese Unicode FAQs}}</ref><ref>{{cite web |url=https://hg.mozilla.org/mozilla-central/raw-file/FIREFOX_AURORA_31_BASE/intl/uconv/ucvlatin/vps.ut |title=vps.ut (VPS to Unicode) |work=Mozilla Uconv |first=Frank |last=Tang |publisher=[[Netscape]]/[[Mozilla]]}}</ref>}}
|-
|{{chset-left1|0x}}
|{{chset-ctrl1|U+0000 NULL|[[Null character|NUL]]}}
|{{chset-ctrl1|U+0001 START OF HEADING|[[Start of heading|SOH]]}}
|{{chset-cell1|u=1EA0|U+1EA0 LATIN CAPITAL LETTER A WITH DOT BELOW| Ạ}}
|{{chset-cell1|u=1EAC|U+1EAC LATIN CAPITAL LETTER A WITH CIRCUMFLEX AND DOT BELOW| Ậ}}
|{{chset-cell1|u=1EB6|U+1EB6 LATIN CAPITAL LETTER A WITH BREVE AND DOT BELOW| Ặ}}
|{{chset-cell1|u=1EB8|U+1EB8 LATIN CAPITAL LETTER E WITH DOT BELOW| Ẹ}}
|{{chset-cell1|u=1EC6|U+1EC6 LATIN CAPITAL LETTER E WITH CIRCUMFLEX AND DOT BELOW| Ệ}}
|{{chset-ctrl1|U+0007 BELL|[[Bell character|BEL]]}}
|{{chset-ctrl1|U+0008 BACKSPACE|[[Backspace|BS]]}}
|{{chset-ctrl1|U+0009 CHARACTER TABULATION|[[Tab key|HT]]}}
|{{chset-ctrl1|U+000A LINE FEED (LF)|[[Line feed|LF]]}}
|{{chset-ctrl1|U+000B LINE TABULATION|[[Vertical tab|VT]]}}
|{{chset-ctrl1|U+000C FORM FEED (FF)|[[Form feed|FF]]}}
|{{chset-ctrl1|U+000D CARRIAGE RETURN (CR)|[[Carriage return|CR]]}}
|{{chset-ctrl1|U+000E SHIFT OUT|[[Shift out|SO]]}}
|{{chset-ctrl1|U+000F SHIFT IN|[[Shift in|SI]]}}
|-
|{{chset-left1|1x}}
|{{chset-cell1|u=1ECA|U+1ECA LATIN CAPITAL LETTER I WITH DOT BELOW| Ị}}
|{{chset-cell1|u=1ECC|U+1ECC LATIN CAPITAL LETTER O WITH DOT BELOW| Ọ}}
|{{chset-cell1|u=1ED8|U+1ED8 LATIN CAPITAL LETTER O WITH CIRCUMFLEX AND DOT BELOW| Ộ}}
|{{chset-cell1|u=1EE2|U+1EE2 LATIN CAPITAL LETTER O WITH HORN AND DOT BELOW| Ợ}}
|{{chset-cell1|u=1EE4|U+1EE4 LATIN CAPITAL LETTER U WITH DOT BELOW| Ụ}}
|{{chset-cell1|u=1EF0|U+1EF0 LATIN CAPITAL LETTER U WITH HORN AND DOT BELOW| Ự}}
|{{chset-ctrl1|U+0016 SYNCHRONOUS IDLE|[[Synchronous idle|SYN]]}}
|{{chset-ctrl1|U+0017 END OF TRANSMISSION BLOCK|[[End of transmission block|ETB]]}}
|{{chset-ctrl1|U+0018 CANCEL|[[Cancel character|CAN]]}}
|{{chset-cell1|u=1EF4|U+1EF4 LATIN CAPITAL LETTER Y WITH DOT BELOW| Ỵ}}
|{{chset-ctrl1|U+001A SUBSTITUTE|[[Substitute character|SUB]]}}
|{{chset-ctrl1|U+001B ESCAPE|[[Escape character|ESC]]}}
|{{chset-cell1|u=1EAA|U+1EAA LATIN CAPITAL LETTER A WITH CIRCUMFLEX AND TILDE| Ẫ}}
|{{chset-cell1|u=1EEE|U+1EEE LATIN CAPITAL LETTER U WITH HORN AND TILDE| Ữ}}
|{{chset-ctrl1|U+001E INFORMATION SEPARATOR TWO|[[Record separator|RS]]}}
|{{chset-ctrl1|U+001F INFORMATION SEPARATOR ONE|[[Unit separator|US]]}}
|-
|{{chset-left1|2x}}
|{{chset-ctrl1|U+0020 |[[space character|SP]]}}
|{{chset-cell1|U+0021 EXCLAMATION MARK|!}}
|{{chset-cell1|U+0022 QUOTATION MARK|"}}
|{{chset-cell1|U+0023: NUMBER SIGN |#}}
|{{chset-cell1|U+0024 DOLLAR SIGN|$}}
|{{chset-cell1|U+0025 PERCENT SIGN|%}}
|{{chset-cell1|U+0026 AMPERSAND|&}}
|{{chset-cell1|U+0027 APOSTROPHE|'}}
|{{chset-cell1|U+0028 LEFT PARENTHESIS|(}}
|{{chset-cell1|U+0029 RIGHT PARENTHESIS|)}}
|{{chset-cell1|U+002A ASTERISK|*}}
|{{chset-cell1|U+002B PLUS SIGN|+}}
|{{chset-cell1|U+002C COMMA|,}}
|{{chset-cell1|U+002D HYPHEN-MINUS|-}}
|{{chset-cell1|U+002E FULL STOP|.}}
|{{chset-cell1|U+002F SOLIDUS|/}}
|-
|{{chset-left1|3x}}
| {{chset-cell1 | U+0030: DIGIT ZERO | [[0]] }}
| {{chset-cell1 | U+0031: DIGIT ONE | [[1]] }}
| {{chset-cell1 | U+0032: DIGIT TWO | [[2]] }}
| {{chset-cell1 | U+0033: DIGIT THREE | [[3]] }}
| {{chset-cell1 | U+0034: DIGIT FOUR | [[4]] }}
| {{chset-cell1 | U+0035: DIGIT FIVE | [[5]] }}
| {{chset-cell1 | U+0036: DIGIT SIX | [[6]] }}
| {{chset-cell1 | U+0037: DIGIT SEVEN | [[7]] }}
| {{chset-cell1 | U+0038: DIGIT EIGHT | [[8]] }}
| {{chset-cell1 | U+0039: DIGIT NINE | [[9]] }}
| {{chset-cell1 | U+003A: COLON | [[Colon (punctuation)|:]] }}
| {{chset-cell1 | U+003B: SEMICOLON | [[;]] }}
| {{chset-cell1 | U+003C: LESS-THAN SIGN | [[Less-than sign|<]] }}
| {{chset-cell1 | U+003D: EQUALS SIGN | [[=]] }}
| {{chset-cell1 | U+003E: GREATER-THAN SIGN | [[Greater-than sign|>]] }}
| {{chset-cell1 | U+003F: QUESTION MARK | [[?]] }}
|-
|{{chset-left1|4x}}
|{{chset-cell1|U+0040 COMMERCIAL AT|@}}
|{{chset-cell1|U+0041 LATIN CAPITAL LETTER A|A}}
|{{chset-cell1|U+0042 LATIN CAPITAL LETTER B|B}}
|{{chset-cell1|U+0043 LATIN CAPITAL LETTER C|C}}
|{{chset-cell1|U+0044 LATIN CAPITAL LETTER D|D}}
|{{chset-cell1|U+0045 LATIN CAPITAL LETTER E|E}}
|{{chset-cell1|U+0046 LATIN CAPITAL LETTER F|F}}
|{{chset-cell1|U+0047 LATIN CAPITAL LETTER G|G}}
|{{chset-cell1|U+0048 LATIN CAPITAL LETTER H|H}}
|{{chset-cell1|U+0049 LATIN CAPITAL LETTER I|I}}
|{{chset-cell1|U+004A LATIN CAPITAL LETTER J|J}}
|{{chset-cell1|U+004B LATIN CAPITAL LETTER K|K}}
|{{chset-cell1|U+004C LATIN CAPITAL LETTER L|L}}
|{{chset-cell1|U+004D LATIN CAPITAL LETTER M|M}}
|{{chset-cell1|U+004E LATIN CAPITAL LETTER N|N}}
|{{chset-cell1|U+004F LATIN CAPITAL LETTER O|O}}
|-
|{{chset-left1|5x}}
|{{chset-cell1|U+0050 LATIN CAPITAL LETTER P|P}}
|{{chset-cell1|U+0051 LATIN CAPITAL LETTER Q|Q}}
|{{chset-cell1|U+0052 LATIN CAPITAL LETTER R|R}}
|{{chset-cell1|U+0053 LATIN CAPITAL LETTER S|S}}
|{{chset-cell1|U+0054 LATIN CAPITAL LETTER T|T}}
|{{chset-cell1|U+0055 LATIN CAPITAL LETTER U|U}}
|{{chset-cell1|U+0056 LATIN CAPITAL LETTER V|V}}
|{{chset-cell1|U+0057 LATIN CAPITAL LETTER W|W}}
|{{chset-cell1|U+0058 LATIN CAPITAL LETTER X|X}}
|{{chset-cell1|U+0059 LATIN CAPITAL LETTER Y|Y}}
|{{chset-cell1|U+005A LATIN CAPITAL LETTER Z|Z}}
|{{chset-cell1|U+005B LEFT SQUARE BRACKET|[}}
|{{chset-cell1|U+005C REVERSE SOLIDUS|\}}
|{{chset-cell1|U+005D RIGHT SQUARE BRACKET|]}}
|{{chset-cell1|U+005E CIRCUMFLEX ACCENT|^}}
|{{chset-cell1|U+005F LOW LINE|_}}
|-
|{{chset-left1|6x}}
|{{chset-cell1|U+0060 GRAVE ACCENT|`}}
|{{chset-cell1|U+0061 LATIN SMALL LETTER A|a}}
|{{chset-cell1|U+0062 LATIN SMALL LETTER B|b}}
|{{chset-cell1|U+0063 LATIN SMALL LETTER C|c}}
|{{chset-cell1|U+0064 LATIN SMALL LETTER D|d}}
|{{chset-cell1|U+0065 LATIN SMALL LETTER E|e}}
|{{chset-cell1|U+0066 LATIN SMALL LETTER F|f}}
|{{chset-cell1|U+0067 LATIN SMALL LETTER G|g}}
|{{chset-cell1|U+0068 LATIN SMALL LETTER H|h}}
|{{chset-cell1|U+0069 LATIN SMALL LETTER I|i}}
|{{chset-cell1|U+006A LATIN SMALL LETTER J|j}}
|{{chset-cell1|U+006B LATIN SMALL LETTER K|k}}
|{{chset-cell1|U+006C LATIN SMALL LETTER L|l}}
|{{chset-cell1|U+006D LATIN SMALL LETTER M|m}}
|{{chset-cell1|U+006E LATIN SMALL LETTER N|n}}
|{{chset-cell1|U+006F LATIN SMALL LETTER O|o}}
|-
|{{chset-left1|7x}}
|{{chset-cell1|U+0070 LATIN SMALL LETTER P|p}}
|{{chset-cell1|U+0071 LATIN SMALL LETTER Q|q}}
|{{chset-cell1|U+0072 LATIN SMALL LETTER R|r}}
|{{chset-cell1|U+0073 LATIN SMALL LETTER S|s}}
|{{chset-cell1|U+0074 LATIN SMALL LETTER T|t}}
|{{chset-cell1|U+0075 LATIN SMALL LETTER U|u}}
|{{chset-cell1|U+0076 LATIN SMALL LETTER V|v}}
|{{chset-cell1|U+0077 LATIN SMALL LETTER W|w}}
|{{chset-cell1|U+0078 LATIN SMALL LETTER X|x}}
|{{chset-cell1|U+0079 LATIN SMALL LETTER Y|y}}
|{{chset-cell1|U+007A LATIN SMALL LETTER Z|z}}
| {{chset-cell1 | U+007B: LEFT CURLY BRACKET | { }}
| {{chset-cell1 | U+007C: VERTICAL LINE | {{!}} }}
| {{chset-cell1 | U+007D: RIGHT CURLY BRACKET | } }}
|{{chset-cell1|U+007E TILDE|~}}
|{{chset-ctrl1|U+007F DELETE|[[Delete character|DEL]]}}
|-
|{{chset-left1|8x}}
|{{chset-cell1|u=00C0|U+00C0 LATIN CAPITAL LETTER A WITH GRAVE| À}}
|{{chset-cell1|u=1EA2|U+1EA2 LATIN CAPITAL LETTER A WITH HOOK ABOVE| Ả}}
|{{chset-cell1|u=00C3|U+00C3 LATIN CAPITAL LETTER A WITH TILDE| Ã}}
|{{chset-cell1|u=1EA4|U+1EA4 LATIN CAPITAL LETTER A WITH CIRCUMFLEX AND ACUTE| Ấ}}
|{{chset-cell1|u=1EA6|U+1EA6 LATIN CAPITAL LETTER A WITH CIRCUMFLEX AND GRAVE| Ầ}}
|{{chset-cell1|u=1EA8|U+1EA8 LATIN CAPITAL LETTER A WITH CIRCUMFLEX AND HOOK ABOVE| Ẩ}}
|{{chset-cell1|u=1ECD|U+1ECD LATIN SMALL LETTER O WITH DOT BELOW| ọ}}
|{{chset-cell1|u=1ED7|U+1ED7 LATIN SMALL LETTER O WITH CIRCUMFLEX AND TILDE| ỗ}}
|{{chset-cell1|u=0102|U+0102 LATIN CAPITAL LETTER A WITH BREVE| Ă}}
|{{chset-cell1|u=1EBF|U+1EBF LATIN SMALL LETTER E WITH CIRCUMFLEX AND ACUTE| ế}}
|{{chset-cell1|u=1EC1|U+1EC1 LATIN SMALL LETTER E WITH CIRCUMFLEX AND GRAVE| ề}}
|{{chset-cell1|u=1EC3|U+1EC3 LATIN SMALL LETTER E WITH CIRCUMFLEX AND HOOK ABOVE| ể}}
|{{chset-cell1|u=1EC7|U+1EC7 LATIN SMALL LETTER E WITH CIRCUMFLEX AND DOT BELOW| ệ}}
|{{chset-cell1|u=1EAE|U+1EAE LATIN CAPITAL LETTER A WITH BREVE AND ACUTE| Ắ}}
|{{chset-cell1|u=1EB0|U+1EB0 LATIN CAPITAL LETTER A WITH BREVE AND GRAVE| Ằ}}
|{{chset-cell1|u=1EB2|U+1EB2 LATIN CAPITAL LETTER A WITH BREVE AND HOOK ABOVE| Ẳ}}
|-
|{{chset-left1|9x}}
|{{chset-cell1|u=1EBE|U+1EBE LATIN CAPITAL LETTER E WITH CIRCUMFLEX AND ACUTE| Ế}}
|{{chset-cell1|u=2018|U+2018 LEFT SINGLE QUOTATION MARK| ‘}}
|{{chset-cell1|u=2019|U+2019 RIGHT SINGLE QUOTATION MARK| ’}}
|{{chset-cell1|u=1EC0|U+1EC0 LATIN CAPITAL LETTER E WITH CIRCUMFLEX AND GRAVE| Ề}}
|{{chset-cell1|u=1EC2|U+1EC2 LATIN CAPITAL LETTER E WITH CIRCUMFLEX AND HOOK ABOVE| Ể}}
|{{chset-cell1|u=1EC4|U+1EC4 LATIN CAPITAL LETTER E WITH CIRCUMFLEX AND TILDE| Ễ}}
|{{chset-cell1|u=1ED0|U+1ED0 LATIN CAPITAL LETTER O WITH CIRCUMFLEX AND ACUTE| Ố}}
|{{chset-cell1|u=1ED2|U+1ED2 LATIN CAPITAL LETTER O WITH CIRCUMFLEX AND GRAVE| Ồ}}
|{{chset-cell1|u=1ED4|U+1ED4 LATIN CAPITAL LETTER O WITH CIRCUMFLEX AND HOOK ABOVE| Ổ}}
|{{chset-cell1|u=1ED6|U+1ED6 LATIN CAPITAL LETTER O WITH CIRCUMFLEX AND TILDE| Ỗ}}
|{{chset-cell1|u=00FD|U+00FD LATIN SMALL LETTER Y WITH ACUTE| ý}}
|{{chset-cell1|u=1EF7|U+1EF7 LATIN SMALL LETTER Y WITH HOOK ABOVE| ỷ}}
|{{chset-cell1|u=1EF5|U+1EF5 LATIN SMALL LETTER Y WITH DOT BELOW| ỵ}}
|{{chset-cell1|u=1EDA|U+1EDA LATIN CAPITAL LETTER O WITH HORN AND ACUTE| Ớ}}
|{{chset-cell1|u=1EDC|U+1EDC LATIN CAPITAL LETTER O WITH HORN AND GRAVE| Ờ}}
|{{chset-cell1|u=1EDE|U+1EDE LATIN CAPITAL LETTER O WITH HORN AND HOOK ABOVE| Ở}}
|-
|{{chset-left1|Ax}}
|{{chset-ctrl1|U+00A0 NO-BREAK SPACE|[[non-breaking space|NBSP]]}}
|{{chset-cell1|u=1EAF|U+1EAF LATIN SMALL LETTER A WITH BREVE AND ACUTE| ắ}}
|{{chset-cell1|u=1EB1|U+1EB1 LATIN SMALL LETTER A WITH BREVE AND GRAVE| ằ}}
|{{chset-cell1|u=1EB3|U+1EB3 LATIN SMALL LETTER A WITH BREVE AND HOOK ABOVE| ẳ}}
|{{chset-cell1|u=1EB5|U+1EB5 LATIN SMALL LETTER A WITH BREVE AND TILDE| ẵ}}
|{{chset-cell1|u=1EB7|U+1EB7 LATIN SMALL LETTER A WITH BREVE AND DOT BELOW| ặ}}
|{{chset-cell1|u=1EE0|U+1EE0 LATIN CAPITAL LETTER O WITH HORN AND TILDE| Ỡ}}
|{{chset-cell1|u=1EDB|U+1EDB LATIN SMALL LETTER O WITH HORN AND ACUTE| ớ}}
|{{chset-cell1|u=00D9|U+00D9 LATIN CAPITAL LETTER U WITH GRAVE| Ù}}
|{{chset-cell1|u=1EDD|U+1EDD LATIN SMALL LETTER O WITH HORN AND GRAVE| ờ}}
|{{chset-cell1|u=1EDF|U+1EDF LATIN SMALL LETTER O WITH HORN AND HOOK ABOVE| ở}}
|{{chset-cell1|u=1EE1|U+1EE1 LATIN SMALL LETTER O WITH HORN AND TILDE| ỡ}}
|{{chset-cell1|u=0168|U+0168 LATIN CAPITAL LETTER U WITH TILDE| Ũ}}
|{{chset-cell1|u=1EE8|U+1EE8 LATIN CAPITAL LETTER U WITH HORN AND ACUTE| Ứ}}
|{{chset-cell1|u=1EE3|U+1EE3 LATIN SMALL LETTER O WITH HORN AND DOT BELOW| ợ}}
|{{chset-cell1|u=1EEA|U+1EEA LATIN CAPITAL LETTER U WITH HORN AND GRAVE| Ừ}}
|-
|{{chset-left1|Bx}}
|{{chset-cell1|u=1ED5|U+1ED5 LATIN SMALL LETTER O WITH CIRCUMFLEX AND HOOK ABOVE| ổ}}
|{{chset-cell1|u=1EEC|U+1EEC LATIN CAPITAL LETTER U WITH HORN AND HOOK ABOVE| Ử}}
|{{chset-cell1|u=1EF2|U+1EF2 LATIN CAPITAL LETTER Y WITH GRAVE| Ỳ}}
|{{chset-cell1|u=1EF8|U+1EF8 LATIN CAPITAL LETTER Y WITH TILDE| Ỹ}}
|{{chset-cell1|u=00CD|U+00CD LATIN CAPITAL LETTER I WITH ACUTE| Í}}
|{{chset-cell1|u=00CC|U+00CC LATIN CAPITAL LETTER I WITH GRAVE| Ì}}
|{{chset-cell1|u=1ED9|U+1ED9 LATIN SMALL LETTER O WITH CIRCUMFLEX AND DOT BELOW| ộ}}
|{{chset-cell1|u=1EC8|U+1EC8 LATIN CAPITAL LETTER I WITH HOOK ABOVE| Ỉ}}
|{{chset-cell1|u=0128|U+0128 LATIN CAPITAL LETTER I WITH TILDE| Ĩ}}
|{{chset-cell1|u=00D3|U+00D3 LATIN CAPITAL LETTER O WITH ACUTE| Ó}}
|{{chset-cell1|u=1EED|U+1EED LATIN SMALL LETTER U WITH HORN AND HOOK ABOVE| ử}}
|{{chset-cell1|u=1EEF|U+1EEF LATIN SMALL LETTER U WITH HORN AND TILDE| ữ}}
|{{chset-cell1|u=00D2|U+00D2 LATIN CAPITAL LETTER O WITH GRAVE| Ò}}
|{{chset-cell1|u=1ECE|U+1ECE LATIN CAPITAL LETTER O WITH HOOK ABOVE| Ỏ}}
|{{chset-cell1|u=00D5|U+00D5 LATIN CAPITAL LETTER O WITH TILDE| Õ}}
|{{chset-cell1|u=1EF1|U+1EF1 LATIN SMALL LETTER U WITH HORN AND DOT BELOW| ự}}
|-
|{{chset-left1|Cx}}
|{{chset-cell1|u=1EA7|U+1EA7 LATIN SMALL LETTER A WITH CIRCUMFLEX AND GRAVE| ầ}}
|{{chset-cell1|U+00C1 LATIN CAPITAL LETTER A WITH ACUTE| Á}}
|{{chset-cell1|U+00C2 LATIN CAPITAL LETTER A WITH CIRCUMFLEX| Â}}
|{{chset-cell1|u=1EA5|U+1EA5 LATIN SMALL LETTER A WITH CIRCUMFLEX AND ACUTE| ấ}}
|{{chset-cell1|u=1EA9|U+1EA9 LATIN SMALL LETTER A WITH CIRCUMFLEX AND HOOK ABOVE| ẩ}}
|{{chset-cell1|u=1EAB|U+1EAB LATIN SMALL LETTER A WITH CIRCUMFLEX AND TILDE| ẫ}}
|{{chset-cell1|u=1EAD|U+1EAD LATIN SMALL LETTER A WITH CIRCUMFLEX AND DOT BELOW| ậ}}
|{{chset-cell1|u=0111|U+0111 LATIN SMALL LETTER D WITH STROKE| đ}}
|{{chset-cell1|u=1EBB|U+1EBB LATIN SMALL LETTER E WITH HOOK ABOVE| ẻ}}
|{{chset-cell1|U+00C9 LATIN CAPITAL LETTER E WITH ACUTE| É}}
|{{chset-cell1|U+00CA LATIN CAPITAL LETTER E WITH CIRCUMFLEX| Ê}}
|{{chset-cell1|u=1EB9|U+1EB9 LATIN SMALL LETTER E WITH DOT BELOW| ẹ}}
|{{chset-cell1|u=1EC9|U+1EC9 LATIN SMALL LETTER I WITH HOOK ABOVE| ỉ}}
|{{chset-cell1|u=1EC5|U+1EC5 LATIN SMALL LETTER E WITH CIRCUMFLEX AND TILDE| ễ}}
|{{chset-cell1|u=1ECB|U+1ECB LATIN SMALL LETTER I WITH DOT BELOW| ị}}
|{{chset-cell1|u=1EF9|U+1EF9 LATIN SMALL LETTER Y WITH TILDE| ỹ}}
|-
|{{chset-left1|Dx}}
|{{chset-cell1|u=01AF|U+01AF LATIN CAPITAL LETTER U WITH HORN| Ư}}
|{{chset-cell1|u=1EE6|U+1EE6 LATIN CAPITAL LETTER U WITH HOOK ABOVE| Ủ}}
|{{chset-cell1|u=1ED3|U+1ED3 LATIN SMALL LETTER O WITH CIRCUMFLEX AND GRAVE| ồ}}
|{{chset-cell1|u=1ED1|U+1ED1 LATIN SMALL LETTER O WITH CIRCUMFLEX AND ACUTE| ố}}
|{{chset-cell1|U+00D4 LATIN CAPITAL LETTER O WITH CIRCUMFLEX| Ô}}
|{{chset-cell1|u=1ECF|U+1ECF LATIN SMALL LETTER O WITH HOOK ABOVE| ỏ}}
|{{chset-cell1|u=01A1|U+01A1 LATIN SMALL LETTER O WITH HORN| ơ}}
|{{chset-cell1|u=00C8|U+00C8 LATIN CAPITAL LETTER E WITH GRAVE| È}}
|{{chset-cell1|u=1EEB|U+1EEB LATIN SMALL LETTER U WITH HORN AND GRAVE| ừ}}
|{{chset-cell1|u=1EE9|U+1EE9 LATIN SMALL LETTER U WITH HORN AND ACUTE| ứ}}
|{{chset-cell1|U+00DA LATIN CAPITAL LETTER U WITH ACUTE| Ú}}
|{{chset-cell1|u=0169|U+0169 LATIN SMALL LETTER U WITH TILDE| ũ}}
|{{chset-cell1|u=01B0|U+01B0 LATIN SMALL LETTER U WITH HORN| ư}}
|{{chset-cell1|U+00DD LATIN CAPITAL LETTER Y WITH ACUTE| Ý}}
|{{chset-cell1|u=1EBA|U+1EBA LATIN CAPITAL LETTER E WITH HOOK ABOVE| Ẻ}}
|{{chset-cell1|U+00DF LATIN SMALL LETTER SHARP S| ß}}
|-
|{{chset-left1|Ex}}
|{{chset-cell1|U+00E0 LATIN SMALL LETTER A WITH GRAVE| à}}
|{{chset-cell1|U+00E1 LATIN SMALL LETTER A WITH ACUTE| á}}
|{{chset-cell1|U+00E2 LATIN SMALL LETTER A WITH CIRCUMFLEX| â}}
|{{chset-cell1|U+00E3 LATIN SMALL LETTER A WITH TILDE| ã}}
|{{chset-cell1|u=1EA3|U+1EA3 LATIN SMALL LETTER A WITH HOOK ABOVE| ả}}
|{{chset-cell1|u=1EA1|U+1EA1 LATIN SMALL LETTER A WITH DOT BELOW| ạ}}
|{{chset-cell1|u=0103|U+0103 LATIN SMALL LETTER A WITH BREVE| ă}}
|{{chset-cell1|U+00E7 LATIN SMALL LETTER C WITH CEDILLA| ç}}
|{{chset-cell1|U+00E8 LATIN SMALL LETTER E WITH GRAVE| è}}
|{{chset-cell1|U+00E9 LATIN SMALL LETTER E WITH ACUTE| é}}
|{{chset-cell1|U+00EA LATIN SMALL LETTER E WITH CIRCUMFLEX| ê}}
|{{chset-cell1|u=1EBD|U+1EBD LATIN SMALL LETTER E WITH TILDE| ẽ}}
|{{chset-cell1|U+00EC LATIN SMALL LETTER I WITH GRAVE| ì}}
|{{chset-cell1|U+00ED LATIN SMALL LETTER I WITH ACUTE| í}}
|{{chset-cell1|U+00EE LATIN SMALL LETTER I WITH CIRCUMFLEX| î}}
|{{chset-cell1|u=0129|U+0129 LATIN SMALL LETTER I WITH TILDE| ĩ}}
|-
|{{chset-left1|Fx}}
|{{chset-cell1|u=1EB4|U+1EB4 LATIN CAPITAL LETTER A WITH BREVE AND TILDE| Ẵ}}
|{{chset-cell1|u=0110|U+0110 LATIN CAPITAL LETTER D WITH STROKE| Đ}}
|{{chset-cell1|U+00F2 LATIN SMALL LETTER O WITH GRAVE| ò}}
|{{chset-cell1|U+00F3 LATIN SMALL LETTER O WITH ACUTE| ó}}
|{{chset-cell1|U+00F4 LATIN SMALL LETTER O WITH CIRCUMFLEX| ô}}
|{{chset-cell1|U+00F5 LATIN SMALL LETTER O WITH TILDE| õ}}
|{{chset-cell1|U+00F6 LATIN SMALL LETTER O WITH DIAERESIS| ö}}
|{{chset-cell1|u=01A0|U+01A0 LATIN CAPITAL LETTER O WITH HORN| Ơ}}
|{{chset-cell1|u=1EE5|U+1EE5 LATIN SMALL LETTER U WITH DOT BELOW| ụ}}
|{{chset-cell1|U+00F9 LATIN SMALL LETTER U WITH GRAVE| ù}}
|{{chset-cell1|U+00FA LATIN SMALL LETTER U WITH ACUTE| ú}}
|{{chset-cell1|u=1EE7|U+1EE7 LATIN SMALL LETTER U WITH HOOK ABOVE| ủ}}
|{{chset-cell1|U+00FC LATIN SMALL LETTER U WITH DIAERESIS| ü}}
|{{chset-cell1|u=1EF6|U+1EF6 LATIN CAPITAL LETTER Y WITH HOOK ABOVE| Ỷ}}
|{{chset-cell1|u=1EBC|U+1EBC LATIN CAPITAL LETTER E WITH TILDE| Ẽ}}
|{{chset-cell1|u=1EF3|U+1EF3 LATIN SMALL LETTER Y WITH GRAVE| ỳ}}
|}

==Trojan incident==
In March 2010, [[Google]]<ref name="Google Mehta">{{cite web|url=http://googleonlinesecurity.blogspot.com/2010/03/chilling-effects-of-malware.html|title=The Chilling Effects of Malware|author=Neel Mehta|work=Google Online Security Blog|publisher=[[Google LLC]]|date=2010-03-30|access-date=2010-03-31}}</ref> and [[McAfee]]<ref name="McAfee Kurtz">{{cite web|url=http://siblog.mcafee.com/cto/vietnamese-speakers-targeted-in-cyberattack/|title=Vietnamese Speakers Targeted In Cyberattack|first=George|last=Kurtz|work=Security Insights Blog|publisher=McAfee|date=2010-03-30}}</ref> announced on their security blogs that they believe that hackers compromised the VPS website and replaced the program with a trojan. The trojan, which McAfee has code-named '''W32/[[Vulcanbot|VulcanBot]]''', creates a [[botnet]] that could be used to launch [[Denial-of-service attack#Distributed attack|distributed denial of service]] attacks on websites critical of the Vietnamese government's plan to mine [[bauxite]] in the country's [[Central Highlands (Vietnam)|Central Highlands]].<ref name="NYT Wassener">{{cite news|url=https://www.nytimes.com/2010/04/01/world/asia/01vietnam.html|title=Google Links Web Attacks to Vietnam Mine Dispute|first=Bettina|last=Wassener|work=[[The New York Times]] |date=2010-03-31|access-date=2010-03-31}}</ref> McAfee suspects that the authors of the trojan have ties to the [[Vietnamese government]].<ref name="McAfee Kurtz" /> However, Nguyễn Tử Quảng of [[Hanoi University of Technology|Bách Khoa Internet Security]] (Bkis) called McAfee's accusation "somewhat premature".<ref name="BBC">{{cite news|title=Google cáo giác về 'tin tặc chính trị' VN|work=[[BBC Online|BBC Vietnamese]]|publisher=[[BBC]]|date=2010-03-31|access-date=2010-04-01|url=http://www.bbc.co.uk/vietnamese/vietnam/2010/03/100331_google_vietnam.shtml|language=vi}}</ref> The Vietnamese Ministry of Foreign Affairs issued a statement calling Google's and McAfee's comments "groundless".<ref>{{cite web|url = http://www.mofa.gov.vn/en/tt_baochi/pbnfn/ns100405180742#g4a4vTDi1KTX|title = The comments on malware targeted at Vietnamese computers users are groudless|date = 2010-04-03|author = Vietnamese Ministry of Foreign Affairs|access-date = 2010-04-05}}</ref>

VPS discovered a breach on their website on January 22, 2010, and restored the non-infected software then, but did not publicize it widely because they did not realize the serious nature of the matter.<ref>{{cite web|url=http://vps.org/xinloi_vpskey.html|title=Thư xin lỗi của HCGVN|date=2010-04-01|access-date=2010-04-03|language=vi|publisher=Vietnamese Professional Society|archive-url=https://web.archive.org/web/20160310133612/http://vps.org/xinloi_vpskey.html|archive-date=2016-03-10}}</ref>

== References ==
{{Reflist}}

== External links ==
*[http://www.vps.org Vietnamese Professionals Society]
*[https://drive.google.com/open?id=1r08sNUtY-ZLp2XYJhv8X7nldSYEMwEjOIKectC0Hxwc&authuser=0 Download VpsKeys 4.3]

{{Input method}}

[[Category:1993 software]]
[[Category:Vietnamese character input]]
[[Category:Windows-only freeware]]