Sorry for the physically long post today, and on that note, for the cliched post title. But I think it's justified. You see, today's post is not just a WTF, it's a WTF2. We not only have the built-in method ignored, but the reimplementation (is that even a word?) is, I believe, the worst possible way to convert an 8-bit integer into a 2-digit hexidecimal code.

Jørn Aakre was tasked to fix the entire project and brought it down from 2mb of source code to 80k and ~100% full-time CPU utilization to <1%. And, naturally, Jørn was paid a fair 200-400% less than the original consultants who developed it.
Public Function URLEncoder(strText) 
Dim lngPlace As Long 
Dim strBuffer As String 
Dim strCharacter As String 
Dim Buffer As String 
Do While lngPlace < Len(strText) 
  lngPlace = lngPlace + 1 
  strCharacter = Mid(strText, lngPlace, 1) 
  Select Case strCharacter 
   Case Chr(0) 
    Buffer = Buffer & "" 
   Case Chr(1) 
    Buffer = Buffer & "%01" 
   Case Chr(2) 
    Buffer = Buffer & "%02" 
   Case Chr(3) 
    Buffer = Buffer & "%03" 
   Case Chr(4) 
    Buffer = Buffer & "%04" 
   Case Chr(5) 
    Buffer = Buffer & "%05" 
   Case Chr(6) 
    Buffer = Buffer & "%06" 
   Case Chr(7) 
    Buffer = Buffer & "%07" 
   Case Chr(8) 
    Buffer = Buffer & "%08" 
   Case Chr(9) 
    Buffer = Buffer & "%09" 
   Case Chr(10) 
    Buffer = Buffer & "%0A" 
   Case Chr(11) 
    Buffer = Buffer & "%0B" 
   Case Chr(12) 
    Buffer = Buffer & "%0C" 
   Case Chr(13) 
    Buffer = Buffer & "%0D" 
   Case Chr(14) 
      Buffer = Buffer & "%0E" 
   Case Chr(15) 
    Buffer = Buffer & "%0F" 
   Case Chr(16) 
    Buffer = Buffer & "%10" 
   Case Chr(17) 
    Buffer = Buffer & "%11" 
   Case Chr(18) 
    Buffer = Buffer & "%12" 
   Case Chr(19) 
    Buffer = Buffer & "%13" 
   Case Chr(20) 
    Buffer = Buffer & "%14" 
   Case Chr(21) 
    Buffer = Buffer & "%15" 
   Case Chr(22) 
    Buffer = Buffer & "%16" 
   Case Chr(23) 
    Buffer = Buffer & "%17" 
   Case Chr(24) 
    Buffer = Buffer & "%18" 
   Case Chr(25) 
    Buffer = Buffer & "%19" 
   Case Chr(26) 
    Buffer = Buffer & "%1A" 
   Case Chr(27) 
    Buffer = Buffer & "%1B" 
   Case Chr(28) 
    Buffer = Buffer & "%1C" 
   Case Chr(29) 
    Buffer = Buffer & "%1D" 
   Case Chr(30) 
    Buffer = Buffer & "%1E" 
   Case Chr(31) 
    Buffer = Buffer & "%1F" 
   Case Chr(32) 
    Buffer = Buffer & "+" 
   Case Chr(33) 
    Buffer = Buffer & "%21" 
   Case Chr(34) 
    Buffer = Buffer & "%22" 
   Case Chr(35) 
    Buffer = Buffer & "%23" 
   Case Chr(36) 
    Buffer = Buffer & "%24" 
   Case Chr(37) 
    Buffer = Buffer & "%25" 
   Case Chr(38) 
    Buffer = Buffer & "%26" 


   Case Chr(39) 
    Buffer = Buffer & "%27" 
   Case Chr(40) 
    Buffer = Buffer & "%28" 
   Case Chr(41) 
    Buffer = Buffer & "%29" 
   Case Chr(42) 
    Buffer = Buffer & "%2A" 
   Case Chr(43) 
    Buffer = Buffer & "%2B" 
   Case Chr(44) 
    Buffer = Buffer & "%2C" 
   Case Chr(45) 
    Buffer = Buffer & "%2D" 
   Case Chr(46) 
    Buffer = Buffer & "%2E" 
   Case Chr(47) 
    Buffer = Buffer & "%2F" 
   Case Chr(58) 
    Buffer = Buffer & "%3A" 
   Case Chr(59) 
    Buffer = Buffer & "%3B" 
   Case Chr(60) 
    Buffer = Buffer & "%3C" 
   Case Chr(61) 
    Buffer = Buffer & "%3D" 
   Case Chr(62) 
    Buffer = Buffer & "%3E" 
   Case Chr(63) 
    Buffer = Buffer & "%3F" 
   Case Chr(64) 
    Buffer = Buffer & "%40" 
   Case Chr(91) 
    Buffer = Buffer & "%5B" 
   Case Chr(92) 
    Buffer = Buffer & "%5C" 
   Case Chr(93) 
    Buffer = Buffer & "%5D" 
   Case Chr(94) 
    Buffer = Buffer & "%5E" 
   Case Chr(95) 
    Buffer = Buffer & "%5F" 
   Case Chr(96) 
    Buffer = Buffer & "%60" 
   Case Chr(123) 
    Buffer = Buffer & "%7B" 
   Case Chr(124) 
    Buffer = Buffer & "%7C" 
   Case Chr(125) 
    Buffer = Buffer & "%7D" 
   Case Chr(126) 
    Buffer = Buffer & "%7E" 
   Case Chr(127) 
    Buffer = Buffer & "%7F" 
   Case Chr(128) 
    Buffer = Buffer & "%80" 
   Case Chr(129) 
    Buffer = Buffer & "%81" 
   Case Chr(130) 
    Buffer = Buffer & "%82" 
   Case Chr(131) 
    Buffer = Buffer & "%83" 
   Case Chr(132) 
    Buffer = Buffer & "%84" 
   Case Chr(133) 
    Buffer = Buffer & "%85" 
   Case Chr(134) 
    Buffer = Buffer & "%86" 
   Case Chr(135) 
    Buffer = Buffer & "%87" 
   Case Chr(136) 
    Buffer = Buffer & "%88" 
   Case Chr(137) 
    Buffer = Buffer & "%89" 
   Case Chr(138) 
    Buffer = Buffer & "%8A" 
   Case Chr(139) 
    Buffer = Buffer & "%8B" 
   Case Chr(140) 
    Buffer = Buffer & "%8C" 
   Case Chr(141) 
    Buffer = Buffer & "%8D" 
   Case Chr(142) 
    Buffer = Buffer & "%8E" 
   Case Chr(143) 
    Buffer = Buffer & "%8F" 
   Case Chr(144) 
    Buffer = Buffer & "%90" 
   Case Chr(145) 
    Buffer = Buffer & "%91" 
   Case Chr(146) 
    Buffer = Buffer & "%92" 
   Case Chr(147) 
    Buffer = Buffer & "%93" 
   Case Chr(148) 
    Buffer = Buffer & "%94" 
   Case Chr(149) 
    Buffer = Buffer & "%95" 
   Case Chr(150) 
    Buffer = Buffer & "%96" 
   Case Chr(151) 
    Buffer = Buffer & "%97" 
   Case Chr(152) 
    Buffer = Buffer & "%98" 
   Case Chr(153) 
    Buffer = Buffer & "%99" 
   Case Chr(154) 
    Buffer = Buffer & "%9A" 
   Case Chr(155) 
    Buffer = Buffer & "%9B" 
   Case Chr(156) 
    Buffer = Buffer & "%9C" 
   Case Chr(157) 
    Buffer = Buffer & "%9D" 
   Case Chr(158) 
    Buffer = Buffer & "%9E" 
   Case Chr(159) 
    Buffer = Buffer & "%9F" 
   Case Chr(160) 
    Buffer = Buffer & "%A0" 
   Case Chr(161) 
    Buffer = Buffer & "%A1" 
   Case Chr(162) 
    Buffer = Buffer & "%A2" 
   Case Chr(163) 
    Buffer = Buffer & "%A3" 
   Case Chr(164) 
    Buffer = Buffer & "%A4" 
   Case Chr(165) 
    Buffer = Buffer & "%A5" 
   Case Chr(166) 
    Buffer = Buffer & "%A6" 
   Case Chr(167) 
    Buffer = Buffer & "%A7" 
   Case Chr(168) 
    Buffer = Buffer & "%A8" 
   Case Chr(169) 
    Buffer = Buffer & "%A9" 
   Case Chr(170) 
    Buffer = Buffer & "%AA" 
   Case Chr(171) 
    Buffer = Buffer & "%AB" 
   Case Chr(172) 
    Buffer = Buffer & "%AC" 
   Case Chr(173) 
    Buffer = Buffer & "%AD" 
   Case Chr(174) 
    Buffer = Buffer & "%AE" 
   Case Chr(175) 
    Buffer = Buffer & "%AF" 
   Case Chr(176) 
    Buffer = Buffer & "%B0" 
   Case Chr(177) 
    Buffer = Buffer & "%B1" 
   Case Chr(178) 
    Buffer = Buffer & "%B2" 
   Case Chr(179) 
    Buffer = Buffer & "%B3" 
   Case Chr(180) 
    Buffer = Buffer & "%B4" 
   Case Chr(181) 
    Buffer = Buffer & "%B5" 
   Case Chr(182) 
    Buffer = Buffer & "%B6" 
   Case Chr(183) 
    Buffer = Buffer & "%B7" 
   Case Chr(184) 
    Buffer = Buffer & "%B8" 
   Case Chr(185) 
    Buffer = Buffer & "%B9" 
   Case Chr(186) 
    Buffer = Buffer & "%BA" 
   Case Chr(187) 
    Buffer = Buffer & "%BB" 
   Case Chr(188) 
    Buffer = Buffer & "%BC" 
   Case Chr(189) 
    Buffer = Buffer & "%BD" 
   Case Chr(190) 
    Buffer = Buffer & "%BE" 
   Case Chr(191) 
    Buffer = Buffer & "%BF" 
   Case Chr(192) 
    Buffer = Buffer & "%C0" 
   Case Chr(193) 
    Buffer = Buffer & "%C1" 
   Case Chr(194) 
    Buffer = Buffer & "%C2" 
   Case Chr(195) 
    Buffer = Buffer & "%C3" 
   Case Chr(196) 
    Buffer = Buffer & "%C4" 
   Case Chr(197) 
    Buffer = Buffer & "%C5" 
   Case Chr(198) 
    Buffer = Buffer & "%C6" 
   Case Chr(199) 
    Buffer = Buffer & "%C7" 
   Case Chr(200) 
    Buffer = Buffer & "%C8" 
   Case Chr(201) 
    Buffer = Buffer & "%C9" 
   Case Chr(202) 
    Buffer = Buffer & "%CA" 
   Case Chr(203) 
    Buffer = Buffer & "%CB" 
   Case Chr(204) 
    Buffer = Buffer & "%CC" 
   Case Chr(205) 
    Buffer = Buffer & "%CD" 
   Case Chr(206) 
    Buffer = Buffer & "%CE" 
   Case Chr(207) 
    Buffer = Buffer & "%CF" 
   Case Chr(208) 
    Buffer = Buffer & "%D0" 
   Case Chr(209) 
    Buffer = Buffer & "%D1" 
   Case Chr(210) 
    Buffer = Buffer & "%D2" 
   Case Chr(211) 
    Buffer = Buffer & "%D3" 
   Case Chr(212) 
    Buffer = Buffer & "%D4" 
   Case Chr(213) 
    Buffer = Buffer & "%D5" 
   Case Chr(214) 
    Buffer = Buffer & "%D6" 
   Case Chr(215) 
    Buffer = Buffer & "%D7" 
   Case Chr(216) 
    Buffer = Buffer & "%D8" 
   Case Chr(217) 
    Buffer = Buffer & "%D9" 
   Case Chr(218) 
    Buffer = Buffer & "%DA" 
   Case Chr(219) 
    Buffer = Buffer & "%DB" 
   Case Chr(220) 
    Buffer = Buffer & "%DC" 
   Case Chr(221) 
    Buffer = Buffer & "%DD" 
   Case Chr(222) 
    Buffer = Buffer & "%DE" 
   Case Chr(223) 
    Buffer = Buffer & "%DF" 
   Case Chr(224) 
    Buffer = Buffer & "%E0" 
   Case Chr(225) 
    Buffer = Buffer & "%E1" 
   Case Chr(226) 
    Buffer = Buffer & "%E2" 
   Case Chr(227) 
    Buffer = Buffer & "%E3" 
   Case Chr(228) 
    Buffer = Buffer & "%E4" 
   Case Chr(229) 
    Buffer = Buffer & "%E5" 
   Case Chr(230) 
    Buffer = Buffer & "%E6" 
   Case Chr(231) 
    Buffer = Buffer & "%E7" 
   Case Chr(232) 
    Buffer = Buffer & "%E8" 
   Case Chr(233) 
    Buffer = Buffer & "%E9" 
   Case Chr(234) 
    Buffer = Buffer & "%EA" 
   Case Chr(235) 
    Buffer = Buffer & "%EB" 
   Case Chr(236) 
    Buffer = Buffer & "%EC" 
   Case Chr(237) 
    Buffer = Buffer & "%ED" 
   Case Chr(238) 
    Buffer = Buffer & "%EE" 
   Case Chr(239) 
    Buffer = Buffer & "%EF" 
   Case Chr(240) 
    Buffer = Buffer & "%F0" 
   Case Chr(241) 
    Buffer = Buffer & "%F1" 
   Case Chr(242) 
    Buffer = Buffer & "%F2" 
   Case Chr(243) 
    Buffer = Buffer & "%F3" 
   Case Chr(244) 
    Buffer = Buffer & "%F4" 
   Case Chr(245) 
    Buffer = Buffer & "%F5" 
   Case Chr(246) 
    Buffer = Buffer & "%F6" 
   Case Chr(247) 
    Buffer = Buffer & "%F7" 
   Case Chr(248) 
    Buffer = Buffer & "%F8" 
   Case Chr(249) 
    Buffer = Buffer & "%F9" 
   Case Chr(250) 
    Buffer = Buffer & "%FA" 
   Case Chr(251) 
    Buffer = Buffer & "%FB" 
   Case Chr(252) 
    Buffer = Buffer & "%FC" 
   Case Chr(253) 
    Buffer = Buffer & "%FD" 
   Case Chr(254) 
    Buffer = Buffer & "%FE" 
   Case Chr(255) 
    Buffer = Buffer & "%FF" 
   Case Else 
    Buffer = Buffer & strCharacter 
  End Select 
Loop 
URLEncoder = Buffer 
End Function
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