If you use the IBExpert User Database, just copy and register it in the new installation (Options / Environment Options / IBExpert).
User Database) with the fbembed.dll as client library (found in IBExpert subdirectory C:\...\HK-Software\IBExpert\IBEUDB).
If you have not specified the user database location yourself, it will be automatically created and stored in the IBEUDB subdirectory.