When you return a license key, you do not physically give the license key back to IBM Rational. Instead, you use the return transaction in Rational License Key Center. The Rational License Key Center transaction updates records to indicate that you are no longer using a Rational product on that computer. This adjusts the count of registered products in your account.
After making the adjustments to your account, Rational License Key Center sends you a license key file that contains updated license key information. You receive the license key file even if you have returned all the license keys for that computer.
If you have problems returning or requesting a new redundant server license file, IBM Software Support for Rational products will make the correct changes to your account and create a new license file for you.