Copied from somewhere else on the internet, this PowerShell script will return the product key used for a SQL instance Install. Super useful when changing licenses on temporary VM’s I spin up and play around with to SQL Developer whose instances have passed the Enterprise evaluation use-by date. Putting this here for my own benefit. I claim no kudos! function GetSqlServerProductKey { ## function to retrieve the license key of a SQL 2014 Server. param ($targets = ".") $hklm = 2147483650 $regPath = "SOFTWARE\Microsoft\Microsoft SQL Server\120\Tools\Setup" $regValue1 = "DigitalProductId" $regValue2 = "PatchLevel" $regValue3 = "Edition" Foreach ($target in $targets) { $productKey = $null $win32os = $null $wmi = [WMIClass]"\\$target\root\default:stdRegProv" $data = $wmi.GetBinaryValue($hklm,$regPath,$regValue1) [string]$SQLver = $wmi.GetstringValue($hklm,$regPath,$regValue2).svalue [string]$SQLedition = $wmi.GetstringValue($hklm,$regPath,$regValue3).svalue $binArray = ($data.uValue)[0..16] $charsArray = "B","C","D","F","G","H","J","K","M","P","Q","R","T","V","W","X","Y","2","3","4","6","7","8","9" ## decrypt base24 encoded binary data For ($i = 24; $i -ge 0; $i--) { $k = 0 For ($j = 14; $j -ge 0; $j--) { $k = $k * 256 -bxor $binArray[$j] $binArray[$j] = [math]::truncate($k / 24) $k = $k % 24 } $productKey = $charsArray[$k] + $productKey If (($i % 5 -eq 0) -and ($i -ne 0)) { $productKey = "-" + $productKey } } $win32os = Get-WmiObject Win32_OperatingSystem -computer $target $obj = New-Object Object $obj | Add-Member Noteproperty Computer -value $target $obj | Add-Member Noteproperty OSCaption -value $win32os.Caption $obj | Add-Member Noteproperty OSArch -value $win32os.OSArchitecture $obj | Add-Member Noteproperty SQLver -value $SQLver $obj | Add-Member Noteproperty SQLedition -value $SQLedition $obj | Add-Member Noteproperty ProductKey -value $productkey $obj } } GetSqlServerProductKey Follow @rPh0enix
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