Add an array value to the Registry using Powershell

The code below initializes array $a and creates a key named "MyArray" of type REG_MULTI_SZ in registry path HKEY_CURRENT_USER\Control Panel\Desktop\Test and sets its value to an array

$a = ("val1", "val2", "val3")

$RegPath= "Registry::HKEY_CURRENT_USER\Control Panel\Desktop\Test"

Set-itemProperty $RegPath -name "myArray" -value $a -type MultiString