Active Directory and other services sometimes use a custom GUID format. To convert a GUID to that format, all blocks of the GUID need to be reversed. In addition, the second and third block need to be exchanged.
PowerShell can easily do that conversion:
$sampleGUID = [System.GUID]::NewGuid().Guid $code = { $text = $_.ToCharArray() [Array]::Reverse($text) -join $text } $blocks = $sampleGUID.Split('-') | ForEach-Object -Process $code $blocks[1], $blocks[2] = $blocks[2], $blocks[1] $newGUID = $blocks -join '-' $sampleGUID $newGUID
First, the code creates a sample GUID to play with. It then separates the blocks of the GUID by splitting it at "-". Each block is then reversed.
Finally, blocks 1 and 2 (index starts at 0, so these are blocks 2 and 3 really) are exchanged. The result will look similar to this:
