這里提供了vbscript的加密vbscript encode后 的解密函數(shù)，通過javascript實現(xiàn)：
    在線解密：vbscript.encode 解密函數(shù)
    <SCRIPT language=JScript>
    var STATE_COPY_INPUT = 100
    var STATE_READLEN = 101
    var STATE_DECODE = 102
    var STATE_UNESCAPE = 103
    var pick_encoding = new Array(
    1, 2, 0, 1, 2, 0, 2, 0, 0, 2, 0, 2, 1, 0, 2, 0,
    1, 0, 2, 0, 1, 1, 2, 0, 0, 2, 1, 0, 2, 0, 0, 2,
    1, 1, 0, 2, 0, 2, 0, 1, 0, 1, 1, 2, 0, 1, 0, 2,
    1, 0, 2, 0, 1, 1, 2, 0, 0, 1, 1, 2, 0, 1, 0, 2
    )
    var rawData = new Array(
    0x64,0x37,0x69, 0x50,0x7E,0x2C, 0x22,0x5A,0x65, 0x4A,0x45,0x72,
    0x61,0x3A,0x5B, 0x5E,0x79,0x66, 0x5D,0x59,0x75, 0x5B,0x27,0x4C,
    0x42,0x76,0x45, 0x60,0x63,0x76, 0x23,0x62,0x2A, 0x65,0x4D,0x43,
    0x5F,0x51,0x33, 0x7E,0x53,0x42, 0x4F,0x52,0x20, 0x52,0x20,0x63,
    0x7A,0x26,0x4A, 0x21,0x54,0x5A, 0x46,0x71,0x38, 0x20,0x2B,0x79,
    0x26,0x66,0x32, 0x63,0x2A,0x57, 0x2A,0x58,0x6C, 0x76,0x7F,0x2B,
    0x47,0x7B,0x46, 0x25,0x30,0x52, 0x2C,0x31,0x4F, 0x29,0x6C,0x3D,
    0x69,0x49,0x70, 0x3F,0x3F,0x3F, 0x27,0x78,0x7B, 0x3F,0x3F,0x3F,
    0x67,0x5F,0x51, 0x3F,0x3F,0x3F, 0x62,0x29,0x7A, 0x41,0x24,0x7E,
    0x5A,0x2F,0x3B, 0x66,0x39,0x47, 0x32,0x33,0x41, 0x73,0x6F,0x77,
    0x4D,0x21,0x56, 0x43,0x75,0x5F, 0x71,0x28,0x26, 0x39,0x42,0x78,
    0x7C,0x46,0x6E, 0x53,0x4A,0x64, 0x48,0x5C,0x74, 0x31,0x48,0x67,
    0x72,0x36,0x7D, 0x6E,0x4B,0x68, 0x70,0x7D,0x35, 0x49,0x5D,0x22,
    0x3F,0x6A,0x55, 0x4B,0x50,0x3A, 0x6A,0x69,0x60, 0x2E,0x23,0x6A,
    0x7F,0x09,0x71, 0x28,0x70,0x6F, 0x35,0x65,0x49, 0x7D,0x74,0x5C,
    0x24,0x2C,0x5D, 0x2D,0x77,0x27, 0x54,0x44,0x59, 0x37,0x3F,0x25,
    0x7B,0x6D,0x7C, 0x3D,0x7C,0x23, 0x6C,0x43,0x6D, 0x34,0x38,0x28,
    0x6D,0x5E,0x31, 0x4E,0x5B,0x39, 0x2B,0x6E,0x7F, 0x30,0x57,0x36,
    0x6F,0x4C,0x54, 0x74,0x34,0x34, 0x6B,0x72,0x62, 0x4C,0x25,0x4E,
    0x33,0x56,0x30, 0x56,0x73,0x5E, 0x3A,0x68,0x73, 0x78,0x55,0x09,
    0x57,0x47,0x4B, 0x77,0x32,0x61, 0x3B,0x35,0x24, 0x44,0x2E,0x4D,
    0x2F,0x64,0x6B, 0x59,0x4F,0x44, 0x45,0x3B,0x21, 0x5C,0x2D,0x37,
    0x68,0x41,0x53, 0x36,0x61,0x58, 0x58,0x7A,0x48, 0x79,0x22,0x2E,
    0x09,0x60,0x50, 0x75,0x6B,0x2D, 0x38,0x4E,0x29, 0x55,0x3D,0x3F
    )
    var transformed = new Array()
    for (var i=0; i<3; i++) transformed[i] = new Array()
    for (var i=31; i<=126; i++) for (var j=0; j<3; j++) transformed[j][rawData[(i-31) * 3 + j]] = (i==31) ? 9 : i
    var digits = new Array()
    for (var i=0; i<26; i++)
    {
    digits["A".charCodeAt(0)+i] = i
    digits["a".charCodeAt(0)+i] = i+26
    }
    for (var i=0; i<10; i++) digits["0".charCodeAt(0)+i] = i+52
    digits[0x2b] = 62
    digits[0x2f] = 63
    function unescape(char)
    {
    var escapes = "#&!*$"
    var escaped = "\r\n<>@"
    if (char.charCodeAt(0) > 126) return char
    if (escapes.indexOf(char) != -1) return escaped.substr(escapes.indexOf(char), 1)
    return "?"
    }
    function decodeBase64(string)
    {
    var val = 0
    val += (digits[string.substr(0,1).charCodeAt(0)] << 2)
    val += (digits[string.substr(1,1).charCodeAt(0)] >> 4)
    val += (digits[string.substr(1,1).charCodeAt(0)] & 0xf) << 12
    val += ((digits[string.substr(2,1).charCodeAt(0)] >> 2) << 8)
    val += ((digits[string.substr(2,1).charCodeAt(0)] & 0x3) << 22)
    val += (digits[string.substr(3,1).charCodeAt(0)] << 16)
    return val
    }
    function strdec(encodingString)
    {
    var marker = "#@~^"
    var stringIndex = 0
    var scriptIndex = -1
    var unEncodingIndex = 0
    var char = null
    var encodingLength = unEncodinglength = 0
    var state = STATE_COPY_INPUT
    var unEncodingString = ""
    var re, arr
    while(state)
    {
    switch (state)
    {
    case (STATE_COPY_INPUT) :
    scriptIndex = encodingString.indexOf(marker, stringIndex)
    if (scriptIndex != -1)
    {
    unEncodingString += encodingString.substring(stringIndex, scriptIndex)
    scriptIndex += marker.length
    state = STATE_READLEN
    }
    else
    {
    stringIndex = stringIndex==0 ? 0 : stringIndex
    unEncodingString += encodingString.substr(stringIndex, encodingString.length)
    state = 0
    }
    break
    case (STATE_READLEN) :
    encodingLength = encodingString.substr(scriptIndex, 6)
    unEncodinglength = decodeBase64(encodingLength)
    scriptIndex += (6 + "==".length)
    state = STATE_DECODE
    break
    case (STATE_DECODE) :
    if (!unEncodinglength)
    {
    stringIndex = scriptIndex + "DQgAAA==^#~@".length
    unEncodingIndex = 0
    state = STATE_COPY_INPUT
    break
    }
    char = encodingString.substr(scriptIndex, 1)
    if (char == "@") state = STATE_UNESCAPE
    else
    {
    if (char.charCodeAt(0) < 0xFF)
    {
    unEncodingString += String.fromCharCode(transformed[pick_encoding[unEncodingIndex%64]][char.charCodeAt(0)])
    unEncodingIndex++
    }
    else
    {
    unEncodingString += char
    }
    scriptIndex++
    unEncodinglength--
    break
    }
    case STATE_UNESCAPE:
    unEncodingString += unescape(encodingString.substr(++scriptIndex, 1))
    scriptIndex++; unEncodinglength -=2
    unEncodingIndex++
    state = STATE_DECODE
    break
    }
    }
    re = new RegExp("(JScript|VBscript).encode", "gmi")
    while(arr = re.exec(unEncodingString)) unEncodingString = RegExp.leftContext + RegExp.$1 + RegExp.rightContext
    return unEncodingString
    }
    </SCRIPT>