|File Type||Application Compatibility Database|
|File Format||Proprietary (Microsoft)|
|Usage||Referenced by an application; not meant to be opened manually|
|Popularity||★ ★ ★ ★ ☆ Common|
Database that contains additional Windows registry information; patches the registry to make it compatible with newly installed applications; can be installed on an individual system or on multiple systems over a network.
Windows SDB files are handled by Windows' built-in Compatibility Database Installer Tool (Sdbinst.exe).