Engine.ReleaseLicense ( licenseHandle, reserved = 0)
Informs TestStand that a previously acquired license is no longer needed. An application requires a type of license until you release all license handles for that license type.
licenseHandle As long
[In] Pass the license handle to release that was returned from AcquireLicense.
reserved As long
[In] Reserved for future use.
This parameter has a default value of 0.