Quote
Roxanne
basially this delphi function can be called with the contents of this registry key
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion
DigitalProductId
and it will return a string that is the XP CD key
You did ask!!!!!
function DecodeProductKey(const HexSrc: array of Byte): string;
const
StartOffset: Integer = $34; { //Offset 34 = Array[52] }
EndOffset: Integer = $34 + 15; { //Offset 34 + 15(Bytes) = Array[64] }
Digits: array[0..23] of CHAR = ('B', 'C', 'D', 'F', 'G', 'H', 'J',
'K', 'M', 'P', 'Q', 'R', 'T', 'V', 'W', 'X', 'Y', '2', '3', '4', '6', '7', '8', '9');
dLen: Integer = 29; { //Length of Decoded Product Key }
sLen: Integer = 15;
{ //Length of Encoded Product Key in Bytes (An total of 30 in chars) }
var
HexDigitalPID: array of CARDINAL;
Des: array of CHAR;
I, N: INTEGER;
HN, Value: CARDINAL;
begin
SetLength(HexDigitalPID, dLen);
for I := StartOffset to EndOffset do
begin
HexDigitalPID[I - StartOffSet] := HexSrc[I];
end;
SetLength(Des, dLen + 1);
for I := dLen - 1 downto 0 do
begin
if (((I + 1) mod 6) = 0) then
begin
Des[I] := '-';
end
else
begin
HN := 0;
for N := sLen - 1 downto 0 do
begin
Value := (HN shl 8) or HexDigitalPID[N];
HexDigitalPID[N] := Value div 24;
HN := Value mod 24;
end;
Des[I] := Digits[HN];
end;
end;
Des[dLen] := Chr(0);
for I := 0 to Length(Des) do
begin
Result := Result + Des[I];
end;
end;
end.



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