When the administration console is started the first time after installation, the user is prompted to enter the path to the license server. The path value is stored in the DOORSTDIAdmin.exe.config file at the following location by default: C:\Program Files\IBM\Rational\DOORS for HP Quality Center Interface Admin Tool\3.5. This license server path is at the QCILicenseServerPath entry of <appSettings> section of DOORSTDIAdmin.exe.config.
When the administration console is started in subsequent sessions, the license is acquired at the license server path. This process might take 10-25 seconds.