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Windows XP Slideshow

  1. # create table to convert in base 24 
  2. $map="BCDFGHJKMPQRTVWXY2346789" 
  3. # Read registry Key 
  4. $value = (get-itemproperty "HKLM:\\SOFTWARE\Microsoft\Windows NT\CurrentVersion").digitalproductid[0x34..0x42] 
  5. # Convert in Hexa to show you the Raw Key 
  6. $hexa = "" 
  7. $value | foreach { 
  8.   $hexa = $_.ToString("X2") + $hexa 
  9. } 
  10. "Raw Key Big Endian: $hexa" 
  11.  
  12. # find the Product Key 
  13. $ProductKey = "" 
  14. for ($i = 24; $i -ge 0; $i--) { 
  15.   $r = 0 
  16.   for ($j = 14; $j -ge 0; $j--) { 
  17.     $r = ($r * 256) -bxor $value[$j] 
  18.     $value[$j] = [math]::Floor([double]($r/24)) 
  19.     $r = $r % 24 
  20.   } 
  21.   $ProductKey = $map[$r] + $ProductKey  
  22.   if (($i % 5) -eq 0 -and $i -ne 0) { 
  23.     $ProductKey = "-" + $ProductKey 
  24.   } 
  25. } 
  26. "Product Key: $ProductKey" 
 
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