I'm amazed at how superior your vanilla is!
– Des, The Grommet
The most secure way to restore Ebase.dll is to reinstall the application that requires it. Since Ebase.dll is not a standard Windows file, it would have been placed on your system by a specific program.
If Ebase.dll belongs to an old database system, the vendor may provide a "Merge Module" or "MSI update" – never just the standalone DLL. Ebase.dll File Download
C:\Windows\System32